Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQD4vlYC7d8QQYyIyDA7Crw2OUkDu9x/jSxIIq8zuhC+6lEpnoe5LS5m7LzQ… (1,748 chars)"
  }
}