Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHE5exzA1rGU2xb4aY/hvBpWZjCxBQIXfR0NxSr5Gk3AEDQt1BKAEykVIHR… (844 chars)"
  }
}