gistfile1.json

{"event_type":"email_drafted","event_id":"02c8eb6db56458332fab","timestamp":1394228018,"data":{"customer_id":"464567897564164","email_address":"example@email.com","email_id":250492753,"subject":"Example email","variables":{"email_id":250492753,"customer":{"id":464567897564164,"email":"example@email.com","created_at":1390840358,"reps":"dsfsd","rep":"fghf"}},"template_id":46541,"campaign_id":28825,"campaign_name":"signup"}}

Campaign_id = the same as the ID for a campaign in the UI. 
Template_id = the email within the campaign