Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDkDHRyu8Wx4Wu5XvFHqgLU+6Zz83/kGUgjpiC5Rt0w0DYYFOBcHF03s3dF… (844 chars)"
  }
}