Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQF/gT5FQ+IX/Nbw3hlil/zYMQVS/X7P/81aqRUWu8E8tjtcgQTItGzZ5cfA… (1,748 chars)"
  }
}