Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGHZDj3bh+3sQtAJXVwBFsxc8QpAmAGJsZhdSz6+wAffgxymGfxTApK1pF/… (844 chars)"
  }
}