Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBGJsakA/DktLFMYgksFGe8YKUppV/1HqzpwcQbr9j7QFmZOq4ZvK0Xmxdi… (844 chars)"
  }
}