Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBtTUEg8aGkSQMDIlzdI/BOGDtyFuDPzsjvzowL4krRr0tfCfSzJh/Xt4P6… (1,748 chars)"
  }
}