Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAAq+nVVcsHu1pEtbCtbpbSv/0RGq0zeyKp8Ulx8JaXakmW1JUb9lEtCvFn… (844 chars)"
  }
}