Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAuWvA7xMrKFtFoW4zHTgQ3yxa2A4TM1Hz0QWAM1JbQj0wP7LjSwg91jd4B… (844 chars)"
  }
}