Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHVGZ/kpkwFqrR4ZZIDKTvr7Wy1NZL6wk+ACEAZllJ8yxS/uQpHEA+YEYBi… (844 chars)"
  }
}