Fix pickle field:
In [3]: from noc.sa.models.managedobjectprofile import ManagedObjectProfile
In [5]: mop = ManagedObjectProfile.get_by_id(84)
In [6]: list(mop.metrics)
Out[6]:
[b'\x80',
b'\x02',
b']',
b'q',
b'\x01',
b'(',
b'}',
b'q',
b'\x02',
b'(',
b'X',
b'\x0b',
b'\x00',
b'\x00',
b'\x00',