Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCoc2Yvl+xTqDPJ/XbJLwkObH6PuyFZ3e7K6kftXo/UGjlsH8yMf648Xf2M… (1,748 chars)"
  }
}