Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHTN/Ngg7cyMmguCbXSI2Tub+vgAV+aZWtmITEeQqpkAAg58dIH4oG/d9Ou… (844 chars)"
  }
}