Thanks for clarifying your question. Turning on a subscription isn't
permanent. You should be able to remove the subscription in the Customer
Attributes interface. The limit is an "at any given time" figure.In my
test instance, I was able to remove the subscription by clicking into
the attribute source and clicking on the "X" next to the subscription.
I know this issue is a bit old, but I just discovered DataSlayer, a
Chrome Plugin that works in the Chrome Developer Tools console (It shows
up as another option at the top, along with Console and Network...). It
can parse out the pixel parameters for both POST and GET requests, and
also shows cookie and data layer values.