Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDdxJlSK7sApcKYCB7kEY9fxLWtj7bC4Hqid0052eoKqmqmnV9v+iC719P+… (1,748 chars)"
  }
}