Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFHjTv9tQC/HEzPE5nYnbBpTS9HQL8AjnT6yt4aRc7rWFqCYm9CMrEb9Dmi… (844 chars)"
  }
}