{
    "delegates": [
        "service-account-delegate@example.com"
    ],
    "quota_project_id": "quota_project",
    "service_account_impersonation_url": "https://iamcredentials.googleapis.com/v1/projects/-/serviceAccounts/service-account-target@example.com:generateAccessToken",
    "source_credentials": {
        "client_id": "123",
        "client_secret": "secret",
        "refresh_token": "alabalaportocala",
        "type": "authorized_user"
    },
    "type": "impersonated_service_account"
}