You can just create user.entity.ts. You didnt specify to what db you use, but ı just think you are using mongodb and in mongodb you can just create models like that. then
import { Prop, Schema, SchemaFactory } from "@nestjs/mongoose";
import mongoose, { Document } from "mongoose";
export type UserDocument = User & Document;
@Schema()
export class User {
@Prop({type:mongoose.Types.ObjectId})
id: string;
@Prop({maxlength:50})
name: string;
@Prop()
phone: string;
...
}
export const UserSchema = SchemaFactory.createForClass(User);