Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQC/P0WGa0Nlut7dnqZ9bMd44RqV57ms2GFj6eU9TwJsQXWM3a7EqRoBUpb/… (1,748 chars)"
  }
}