Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQD/20wxX6hyJfKL18RmyEtL4eHqF1qYOxHn/H29qvnJy23RzHnItJ+pJ5jv… (1,748 chars)"
  }
}