paypal/rest-api-sdk-dotnet — pull request #50 by chris03 (2014-09-25 21:31:41+00:00)
Title: Added "experience_profile_id" property

The _Payment_ object was missing the _experience_profile_id_ property.

As per documentation https://developer.paypal.com/docs/api/#payment-object
And example usage: https://developer.paypal.com/docs/integration/direct/rest-experience-overview/#create-a-paypal-payment