Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBsYxXiQKnIaD1kP8HiJKi75l27HaRrUjp/ZbD5TOxRXmKbMgC+6xegU9Xo… (844 chars)"
  }
}