Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDiC/NHj/u3B+a10Y+dBSuX0pgKKsjymSDVjT/D0uNJB2OIu7J0WX0cTLqZ… (1,748 chars)"
  }
}