Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBUfw0iDDpLuXCEj1wAYxHNGfcMySZVrzF6KXODk8kvbQ9g5Zyrf0Egq2yZ… (844 chars)"
  }
}