Ok I follow now better I think. So yea you want to pass in
entity.category so Target can track the category of the product, if you
want to pass in specific category affinity about the user based on data
you might have you can pass that in as well under user.
The cookie needs to be seet seperatly. That could either be a script on
the page that listens for a click to the specific buttons in scope or
perhaps an event listener in Adobe Launch for again the buttons in