fix again

main.py

@@ -1,6 +1,7 @@
 from fastapi import FastAPI, Request, Query
 import logging
 from whatsapp_client import WhatsAppWrapper
+import json
 
 logger = logging.getLogger()
 
@@ -31,8 +32,9 @@ async def verify(
 @app.post("/webook")
 async def callback(request: Request):
     print("============ callback is being called ============")
-    data = await request.body()
-    print(data)
+    body = await request.body()
+    print(body)
+    data = json.loads(data)
     phone_num = data['entry'][0]['changes'][0]['value']['messages'][0]['from']
     mesg_body = data['entry'][0]['changes'][0]['value']['messages'][0]['text']['body']
     phone_number_id = data['entry'][0]['changes'][0]['value']['metadata']['phone_number_id']