Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEJAhrEB+6Uc3OJXXHfuu7TvjksPRMFR75cKtIYu+7LFmDl4oYHjYBBY2hD… (844 chars)"
  }
}