Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBxmqnuM1vAH/IO4gJexgCKOUUp8kWJDC5x7+yvTaUmBBsW6uKzuYOJD3zo… (1,748 chars)"
  }
}