Create your web hook service in Bright Hooks using simple web form See example
Define the web hook in Marketo by using the Webhook Url shown above. See example
Please make sure to 'merge' appropriate fields as parameters as shown in that url.
Map the response to the field that you want to store the value returned by Bright Hooks web service. See example
Please make sure to add 'authentication information' to the web hook in Marketo.
'Advanced' web hooks are not included in Free Trial. Please let us know if you want to try it out.