Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQEeZXvaHuUE6DWkcZUUliFEq3aTRgzqOckR+R8pZ0dp9m8D+7atokL0QIL+… (1,748 chars)"
  }
}