def convert_bytes_to_identifiers(self, encrypted, subject_context):
<EOL>decrypted = self.decrypt(encrypted)<EOL>return self.serialization_manager.deserialize(decrypted)<EOL>
If a cipher_service is available, it will be used to first decrypt the
serialized message.  Then, the bytes are deserialized and returned.

:param serialized:      the bytes to decrypt and then deserialize
:param subject_context: the contextual data, that is being
                        used to construct a Subject instance
:returns: the de-serialized identifier