Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQBpu+BVKwnC+xQIA6pGZMZCtA/P47R8DJJxUSdHBHRr8jxr/jM7+Cj744t+… (1,748 chars)"
  }
}