Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDUfJ5R9zyGhcr8jPeNJFdVWcu0PoOoBtYjY4xZHQZttRj4OG0SkSOoMpD+… (844 chars)"
  }
}