{
    "_id" : LUUID("3c759894-3ae3-4e4c-b480-1361a6cd1a85"),
    "userName" : "123",
    "hashPassword" : "456",
    "ownerDomainId" : LUUID("0be94575-2b88-e640-b72f-fc3ffde2b224"),
    "ownerGroupId" : LUUID("8cecc0d7-fe02-f14c-b81f-83c4ba368158")
}

my $id = (MongoDB::OID->new->to_string);
...
$colUsers->insert({'_id'=>&oid(&hex2bin($id)), 'ownerDomainId'=>&oid(&hex2bin($domain_id)), 'ownerGroupId'=>&oid(&hex2bin($group_id)), ... });

sub oid($)
{
    my $data = shift;
    my $oid = MongoDB::BSON::Binary->new('data'=>$data, 'subtype' => MongoDB::BSON::Binary->SUBTYPE_UUID_DEPRECATED);
    return $oid;
}

sub hex2bin($)
{
    my $data = shift;                                                                                                                                                                        
    return pack('H*', $data);
}

{
    "_id" : LUUID("54ec89c2-384e-e031-823c-2911"),
    "hashPassword" : "456",
    "ownerDomainId" : LUUID("5067f3f4-875c-304c-b2ef-34018d25da3a"),
    "userName" : "123",
    "ownerGroupId" : LUUID("0a44be2d-96ff-1143-924e-5d939308cbcf")
}