Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG1Sd7+4xgv5QkDT1/3Dhvb/qTfJBoANIp4uSilv9OqQyMUyAYOYHSvcvzZ… (844 chars)"
  }
}