Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFm8N4hsoHoYTiVV9UfWYoxnlBFKjk6s3gTfikJF6cWjW9S7MKK3jMmyLpb… (844 chars)"
  }
}