Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBdQF0I/BqrFJQ52nbMaCHaL/q3wynz7hJqhlmmFkx6DmZKLJf0fiGTbV/8… (1,748 chars)"
  }
}