Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF1k9aPo+kO8hnDnQC/VTTUOhSwG2u6eHGi73kqqGW30kNBXtgzvA8VYHb3… (844 chars)"
  }
}