Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBsBlrWmDQnrYRgM8v4Tk/PDJoEiWaT0DnG52iE+OSbdnDIyo3Gk5Xb6nrJ… (844 chars)"
  }
}