Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwCkEzWRQzvyhwE/6lEPVu/3K6KlhA8CiJqD/Ry33tYBtm5K7NIM4a/zI5qT… (844 chars)"
  }
}