public function get(int $entityId)
    {
        $response = $this->infakt->get($this->getServiceName().'/'.$entityId.'.json');

        if (2 != substr((string) $response->getStatusCode(), 0, 1)) {
            return null;
        }

        return $this->getMapper()->map(\GuzzleHttp\json_decode($response->getBody()->getContents(), true));
    }