Pass POST data to Docusign Powerforms

We would like to pass the values from the fields in Gravity Forms to a DocuSign Powerforms, which accepts a URL like this: https://demo.docusign.net/Member/PowerFormSigning.aspx?PowerFormId=255b8784-30b8-469c-a8c6-c49ec2d6a8e5&value1=Jason&lastname=Watson

An example of this with just a standard HTML form is here: http://sedemo1.cloudapp.net/GennWatt/embedded.html

Is this something that Gravity Forms can do for us?

You can do that using the gform_after_submission hook:

Or you could use our Webhooks add-on (requires an Elite license):

There is a 3rd party solution which may work for you as well: