{
"type": "external_account",
"audience": "//iam.googleapis.com/projects/000000000000/locations/global/workloadIdentityPools/reqsign/providers/reqsign-provider",
"subject_token_type": "urn:ietf:params:oauth:token-type:jwt",
"service_account_impersonation_url": "https://iamcredentials.googleapis.com/v1/projects/-/serviceAccounts/test-234@test.iam.gserviceaccount.com:generateAccessToken",
"token_url": "https://sts.googleapis.com/v1/token",
"credential_source": {
"url": "http://localhost:5000/token",
"format": {
"type": "json",
"subject_token_field_name": "id_token"
}
}
}