Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFT9wgDCSFirNxnpyR9B7fKMm0PjSkTF/UQu1TQaEgbl2QMh9VFN3Nyvno6… (844 chars)"
  }
}