Send JSON file with Unity WebRequest

data.json

{"data": {"wrist": [100, 59, 90, 81, 56, 55, 40, 150], 
		  "elbow": [2,20,2,2,10,0,10,500],
		  "shoulder": [28, 48, 200, 19, 96, 27, 100, 10],
		  "stats": {"averageSpeed":2.2580063343048097,"positionalError":0.6527959108352661,"timeElapsed":0.1699676513671875}
		 },
 "description" : "10th test reach the target rehabilitation exercise",
 "username" : "john2",
 "password" : "123456"
 
}

SendJSON

using System.Collections;
using System.Collections.Generic;
using UnityEngine.Networking;
using UnityEngine;
using System.Text;
 
public class SendJSON : MonoBehaviour
{

    private static string BASE_URL = "http://127.0.0.1:8000/healthprofile"; //http://healthbookdemo.herokuapp.com/healthprofile
    private static string UPLOAD_JSON_URL = BASE_URL+"/eat_data/";
        
    void Start()
    {

        string jsonString = loadJson("data.json");
        Debug.Log("JSON to send: " + jsonString);
        StartCoroutine(Upload(jsonString));

    }


    string loadJson(string filename){

        string jsonString = System.IO.File.ReadAllText(filename);


        return jsonString;
        
    }

    IEnumerator Upload(string jsonString) {



        byte[] jsonBytes = Encoding.ASCII.GetBytes(jsonString);
        UnityWebRequest jsonRequest = UnityWebRequest.Put(UPLOAD_JSON_URL, jsonBytes);
        jsonRequest.SetRequestHeader("referer", UPLOAD_JSON_URL);
        jsonRequest.SetRequestHeader("Content-Type", "text/json");

        yield return jsonRequest.SendWebRequest();

        if (jsonRequest.isNetworkError || jsonRequest.isHttpError)
        {
            Debug.Log("Response Code " + jsonRequest.responseCode);
            Debug.Log(jsonRequest.error);
            Debug.Log(jsonRequest.downloadHandler.text);
        }
        else
        {
            Debug.Log("Form upload complete!");
            Debug.Log("Response Code " + jsonRequest.responseCode);
            Debug.Log(jsonRequest.downloadHandler.text);
        }

    }

}