Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGwTtA8zI7UTG5v4mgz/ncqigGl6F0NtIl6n5Vb5iGcCgpW0H4nICGXBf4+… (844 chars)"
  }
}