Googleplay Pay Receipt Check
###Google Play Developer API - 401 The current user has insufficient permissions to perform the requested operation
See Google Doc @https://developers.google.com/android-publisher/getting_started
Use your Google Play Developer Account to create a new Google Cloud Project from https://play.google.com/console in Settings -> API Privileges, this will auto link your google play developer account to the new project.
Create a Service Account from https://console.cloud.google.com/ in the new project which was created in step1.
Grant privilege to service account and add your service account into test account in Google Play Console.