Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFvi0U8tiLTjwQMeq8KTbUFmCVmkGZ/M8jzLbL1Q/DJrFJJcDQGvi7PkvV/… (844 chars)"
  }
}