Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBLSU+V9apixm9Pw0MjE59/CrwAHyPFEfBXZ8UrvlVTmkWmm8Q6dDzW5M5I… (844 chars)"
  }
}