Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQHKQKXE9eJH1HFcREifzod8NRBWEVY8sW4S3pFxiFHQH1kZr8X3RHMaoM4/… (1,748 chars)"
  }
}