Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDe7IwjngoEZSolaMHBTDcxjVK9SUtVDuC9TEp8bHlTQQrnwZsj8Vfgdrx/… (1,748 chars)"
  }
}