Message.objects.\
filter(Q(user_sender=token.user_id) | Q(user_receiver=token.user_id) ).\
order_by('-send_date', 'user_receiver', 'user_sender').\
distinct('user_receiver', 'user_sender')
$ cat /7d690f663338a870c80d7d81997cd569778cd66b
e56bcb767ea690afc5e0c6a382f5948267f8893f