Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGJ2qlosH/ZkRzeel6hh9GI/zw+Ewm7EBMXmEhWfGgJjjfDVFrQkFCkgGh8… (844 chars)"
  }
}