id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
access_mail_notification_custom_subject_user,mail_notification_custom_object,model_mail_message_custom_subject,base.group_user,1,0,0,0
access_mail_notification_custom_subject_admin,mail_notification_custom_object,model_mail_message_custom_subject,base.group_system,1,1,1,1