In order to call https://docs.microsoft.com/en-us/powerapps/developer/common-data-service/webapi/update-delete-entities-using-web-api basic update is required a JWT as authentication. I am able to generate a JWT using login.microsoftonline.com/{{TenantID}}/oauth2/v2.0/token however I am still getting HTTP response 401 while calling entiiy base update. Can you please let me know what am I missing?