Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCIkP1H1+5ZIi114wBvD5MtQRvFqtlwmDGrzI/2oDRMHW5CJkO39gc3/7sB… (1,748 chars)"
  }
}