Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQA8b4AU3in+dk7uoVv4rCtq7/IHZt8Ha356GmaePD/z5Rkh4AkidJZRV5Zp… (1,748 chars)"
  }
}