Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE5mq/n8Asi0sQrpSPykLw0wYNVjWEcRUHgxKaw3eFTwU5apjInxE6rXc/5… (844 chars)"
  }
}