Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDKw6CbmRbqxhAO8n6CZdkDE5dEAYjKCnIdGT/9uvMHu3IXcgEaGgIHM4Hf… (1,748 chars)"
  }
}