Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDGSvhUhfWN/f5Bs3EpEKn76m6gu1IA0TuCq6pWMa5yiwBpDUmrnhHI8f0z… (844 chars)"
  }
}