How can decode this json data that exported at Haumi API?

First, thanks to read this question.

I am developing a website that show statistic chart on health data from wearable device; specially Miband 7 Yesterday, I found some API that bring health data from Haumi Server. It run correctly but "data" of this response is encoded.

I am trying to decode this data. But i coudn't. :(
Here is the json data.

The full data can find this. https://drive.google.com/file/d/1H3Zx1I6jV9WL2jCBi9TpbzyB8rhA_fDn/view?usp=sharing

{
    "code": 1,
    "message": "success",
    "data": [
        {
            "uid": "5077903424",
            "data_type": 0,
            "date_time": "2023-07-26",
            "source": 264,
            "summary": "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",
            "uuid": "1868505a-98b8-4e28-98dc-a4ea62b1981e",
            "data": "fgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAcwkAcBUAUA4AUAMAUAAAUA0AUCIAUB0AUB8AUCwDUAsAUAUAUA8AUBUAUAMAUA0AUBAAUAAAUAAAUAUAUAAAUBMAUBEAUAAAUAAAUAgAUAAAUAoAUAIAUAEAUA8AUAkAUAAAUAAAUAcAUBEAUBIAUAsAUAkAUAwAUAIAUAMAUAgAUBkAUBYAUAEAUAAAUAAAUAAAUAYAUB8AUAoAUBkAUBAAUBIAUB0AUAsAUBcAUDQAUBsAUEUuYBcAQBIAYBMAYB8HYDQQYDYYfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAAfgAA",
            "data_hr": "/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7/////////////YP///////////1v///////////9J////////////S////////////1j///////////9k/////////v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+/v7+"
        },

First I try to decode on base64. summary is worked but, others is not.

I think others are saved like form of some DBMS. Because APIs were found in Zepp Life;Android Applicaiton (and this application use SQLite3)

Solution

I found it.

Data that base64 decoded data_hr are heart rate per one minute.

The length of data are 1440. It is one day.

Furthermore, I compared my hr and decoded data. So I found those are same.

enter image description here

date	hr(DEC)	hr(hex)
00:00	74	4a
00:05	88	58
00:10	78	4e
00:15	80	50
00:20	82	52
00:25	63	3f
00:30	73	49
00:35	78	4e
00:40	77	4d