Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDJbJ4amzT+c7v6e6FcTGYYPQw7OwV58pKXRB9r+E0D1WcrLv4CCHZrXSJ+… (844 chars)"
  }
}