test-service-account.json

{
  "type": "service_account",
  "project_id": "XXXX",
  "private_key_id": "XXXXXX",
  "private_key": "-----BEGIN PRIVATE KEY-----\n+XXXXX-----END PRIVATE KEY-----\n",
  "client_email": "<name of the service accnt>@<project-name>.iam.gserviceaccount.com",
  "client_id": "1CXXXX",
  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
  "token_uri": "https://oauth2.googleapis.com/token",
  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/<name of service accnt>%40<projectid>.iam.gserviceaccount.com"
}