old_contents: import json
  import sys
  
  from whitefacesdk.constants import COLUMNS, MAX_FIELD_SIZE
  
  
  class JSON(object):
  
      def __init__(self, data, cols=COLUMNS, max_field_size=MAX_FIELD_SIZE):
          cols += [u'firsttime', u'created_at', u'otype', u'lasttime', u'id']
          self.cols = cols
          self.max_field_size = max_field_size
          self.data = data
  
      def write(self, fh=sys.stdout):        
          fh.write(json.dumps(self.data['feed']))
          fh.write("\n")
  
new_contents: import json
  import sys
  
  from whitefacesdk.constants import COLUMNS, MAX_FIELD_SIZE
  
  
  class JSON(object):
  
      def __init__(self, data, cols=COLUMNS, max_field_size=MAX_FIELD_SIZE):
          cols += [u'firsttime', u'created_at', u'itype', u'lasttime', u'id']
          self.cols = cols
          self.max_field_size = max_field_size
          self.data = data
  
      def write(self, fh=sys.stdout):        
          fh.write(json.dumps(self.data['feed']))
          fh.write("\n")
  
subject: update format json module, update otype to itype, similar to issue #53