Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFdo7U/nmYYlRxLeNR+GNyN24Hy1kaz3y5uNo2K+F0KZ0tYqpGfcTG4Cxdb… (844 chars)"
  }
}