{"query":" select DATE_FORMAT(time_stamp,'%Y-%m-%d %H:%i') as date, count(*) as count  from( select contact_id, min(time_stamp) as time_stamp   from civicrm_mailing_event_opened    join civicrm_mailing_event_queue q on event_queue_id=q.id    join civicrm_mailing_job j on q.job_id=j.id and j.is_test=false and time_stamp < date_add(scheduled_date, interval 3 day)  and mailing_id=%1 group by contact_id ) o group by date","params":{"1":{"name":"mailing_id","type":"Integer"}}}