function getContact($contactId, $checksum, $standard_fields = array(), $custom_fields = array(), $ignoreChecksum = false)
    {
        $queryParameters = array(
            'id' => $contactId,
            'checksum' => $checksum,
            'standard_field' => $standard_fields,
            'ignore_checksum' => $ignoreChecksum ? "true" : "false"
        );

        $queryParameters = $this->appendArrayFields($queryParameters, 'custom_field', $custom_fields);

        return $this->get('contacts/contact', $queryParameters);
    }