public function create(CampaignDraft $campaignDraft)
    {
        $response = $this->mailjet->post(Resources::$Campaigndraft,
            ['body' => $campaignDraft->format()]);
        if (!$response->success()) {
            $this->throwError("CampaignDraftManager:create() failed", $response);
        }

        return $response->getData();
    }