Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQBFvFkV3+msIuTeb54rsu+rV9+d6eeCENKBsM6vdmhGC3Z8l4mLuRjTAjGZ… (1,748 chars)"
  }
}