Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG0nJ/AvcDKkZ+IQF6QEZmXUt4w4bfo5pIIZSqhE/gl/gUXCcMoRYRZ9nQz… (844 chars)"
  }
}