Once your scenario is finished, click on "Generate HTML code" to create your links. Recipient ID corresponds to a unique variable for each recipient in your ESP.
After the "=" in the URL, you can add your ESP variable for the name. For example on Mailchimp, *|FNAME|*
Example: https://event.reelevant.com/i/5fe9f908f70bde2012a1b7b0?ru=*|USER:UID|*&name=
https://event.reelevant.com/i/5fe9f908f70bde2012a1b7b0?ru=*|USER:UID|*&name=*|FNAME|*
Then you've just to copy/paste your links in your email builder or HTML code.
Enjoy!