Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHvPfuUvAaJ6b+8kVGKudILW0o2EhdZ/QJHtTO1UBW95Xan5UpNZmDjd5k4… (844 chars)"
  }
}