Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE8hn4ys3JsqE/TEK2jcOg8qrTxITGDEI5bzvGocGl6V0JLlNvmoTB5WPgZ… (844 chars)"
  }
}