Adobe Target Experience Targeting
We have an Adobe Target use case we are trying to solve for and hoping to get some clarification and assistance.
Use Case – On our secure site, we want to show a pop up box with personalised message based on logged in User’s attribute. The attribute we want to personalise by is circled in red in screen grab below.

We are planning to use the lightbox experience template as mentioned in documentation below for the pop up
What we are stuck on is, how to serve different experiences based on the attribute? We believe we can use Audiences to serve different experiences, but that will mean creating whole bunch of audiences. Is there a way to dynamically serve experiences for the different attribute values?
Please advise.