Change Details

Call `get_jwt_token` and test if return correct jwt token in format ``` {Base64url encoded header}.{Base64url encoded claim set} ```. Later in the stack this token is used to make HTTP call to get access token for FCM push service.

Call `get_jwt_token` and test if returns the correct JWT token in the format ``` {Base64url encoded header}.{Base64url encoded claim set} ``` Later in the stack this token is used to make an HTTP call to get an access token for the FCM push service.

Call `get_jwt_token` and test if returns the correct jwtJWT token in the format ``` {Base64url encoded header}.{Base64url encoded claim set} ```. Later in the stack this token is used to make an HTTP call to get aan access token for the FCM push service.