{
  "data": "https://storage.googleapis.com/my-gcs-bucket/documents/upload-file.pdf?X-Goog-Algorithm=GOOG4-RSA-SHA256&X-Goog-Credential=service-account%40project-123456.iam.gserviceaccount.com%2F20240116%2Fauto%2Fstorage%2Fgoog4_request&X-Goog-Date=20240116T100000Z&X-Goog-Expires=3600&X-Goog-SignedHeaders=content-type%3Bhost&X-Goog-Signature=abcdef123456"
}