Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHFiz4lYzgSqrzTf4Ia/Oj7tT3cHjqauJUHKGPgTAuB0VsnK9ftf8lVP9v5… (844 chars)"
  }
}