Some more detail: campaign_model->bulk_status
{ "8e062686-3911-11e6-a884-b2cec9c0c41b" : { "modified" : "2016-07-12 00:00:04.957039+00", "status" : "ended" }, "51122d82-48cb-11e6-8767-8cfac9c0c41b" : { "modified" : "2016-07-13 09:05:03.823404+00", "status" : "active" } }