Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQFv9hVqs3F/Y9YkeODvBkW2a53vRxpdmuDzSLK1KtQIszqctv5ahu9lCwlZ… (1,748 chars)"
  }
}