Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDtcSkaRL74hX/u+Ci0/aP97AdiIBfzimHV0ZqXFPVXUgUQd9KFHlEj/9y/… (1,748 chars)"
  }
}