Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG8SnLFVLyHY5BIbHnln08ztvfp9i+vE8AjDU1QCIg+0lF0L7lCFDc5sa8X… (844 chars)"
  }
}