Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHrRsaPNBf3OhKV7hI47C8Vl+BuBNVkh3FEdDbVmw/05jzJUwAXVvO8Z1xc… (844 chars)"
  }
}