Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBF5Y2gLtXEp/XXcq5bo7goeF0jv7uKd77qPMk6AAyBvWP+1qSLwXyKjld+… (1,748 chars)"
  }
}