Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHb/QISGQkNxVUkzIHxwZH/lneI9GNv0zYWQJxTbNM8HSvasjQ9m9KqeXHn… (844 chars)"
  }
}