Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBZHQK0zGCqj+Bi1MScIbNBs6Z269BOzAtkOGBxiv6JSX6wP9FYNHKqYRbW… (1,748 chars)"
  }
}