Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQA/7ahED+VvTvC0qh2iBKIAuIHgMa8MDLSS2Otje0HYpTUWjaC8a51U0Pf/… (1,748 chars)"
  }
}