Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFvEU4HGIy+BgFGcJMr+rxjNXS8jYsZIEn/ax3z9mhonDwpXo0lMXZl3/g9… (844 chars)"
  }
}