Token for opt-in form through Bloom plug in

Hi,

I am trying to make an opt-in form on a wordpress website using Bloom plug in.  The plug in asked me for an API key which it found by itself, and a token which is a blank field right now.  I know nothing about tokens, and to be honest, don't know all that much about making websites in wordpress either, since this is my first.  Can someone help me figure out how to attain a token?

Thanks,

Dave