Non JSON response with ORDS

One last question and I think I can plough ahead.

How can I produce a response something like this from post request where I have defined a service :

HTTP/1.1 201 Created

Date: Mon, 25 Sep 2017 11:02:02 GMT

Content-Length: 20

Content-Type: text/html

01020304050607080910

ie not JSON

Thanks again

Paul