Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQC/lWvBzsSq20ycq+4qvIFM/1/CJNvrKUF/IZ5aJzwDOj7LE8eMG3BY5bfT… (1,748 chars)"
  }
}