public function nexmo(Request $request)
    {
        $this->validate($request, [
            'nexmo_phone' => 'required|string',
            'nexmo_api_key' => 'required|string',
            'nexmo_api_secret' => 'required|string',
            'low' => 'required|boolean',
            'medium' => 'required|boolean',
            'high' => 'required|boolean',
        ]);

        Recipient::create([
            'type' => 'nexmo',
            'address' => $request->nexmo_phone,
            'meta' => [
                'api_key' => $request->nexmo_api_key,
                'api_secret' => $request->nexmo_api_secret,
            ],
            'low' => $request->low,
            'medium' => $request->medium,
            'high' => $request->high,
        ]);

        return redirect(route('eyewitness.settings.index').'#recipients')->withSuccess('The Nexmo recipient has been created. You can now click the button on the recipient and instantly send a "test notification" to ensure it is working.');
    }