Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHMo1TG9TIeOk7gPUeF7e0+IoXJo/kLXWfZ923nuRkX8FPQk7bZRFuh7v7B… (844 chars)"
  }
}