Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG5xoTcCkrUN0i5tQs0nR+/K1FXS43ERZ8mRuVJpBjLQ3cDO/+Jw8bwlsnA… (844 chars)"
  }
}