Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHVMzq7MZKEu9bWlsGLnRlFNiYGgn84DkJ8/SUvVvVlG1ZGNz+jOMVvint4… (844 chars)"
  }
}