Unable to 'Request Service Discovery' and getting the error 'insufficient_scope'

CNBCARABIA

In Real-Time WebSocket API: The Real-Time Optimized Version 2 , i am trying to get the URL list from the “Requesting Service Discovery” as below

try:
r = requests.get(url, headers={"Authorization": "Bearer " + auth_token}, params={"transport": "websocket"}, allow_redirects=False)
except requests.exceptions.RequestException as e:
print('Refinitiv Data Platform service discovery exception failure:', e)
return False

But i am getting the below error

  "code": "insufficient_scope",  "message": "access denied. Scopes required to access the resource: [trapi.streaming.pricing.read]. Missing scopes: [trapi.streaming.pricing.read]",  "status": "Forbidden"

Client ID - GE-D7WVF65ZJUEE