title: Insert new contact
body: <p>I m using <a href="https://github.com/AlexaCRM/php-crm-toolkit" rel="nofollow noreferrer">https://github.com/AlexaCRM/php-crm-toolkit</a> to send data from a form to an entity in CRM
  I want to add a product id from entity 'new_produituic' to 'contact' entity</p>
  
  <pre><code>&lt;?php 
  require 'autoload.php' ;
  use AlexaCRM\CRMToolkit\Entity\EntityReference;
  use AlexaCRM\CRMToolkit\Client as OrganizationService;
  use AlexaCRM\CRMToolkit\Settings;
  $options = [
  'serverUrl' =&gt; 'https://xxxx/',
                'username' =&gt; 'xxx',
                'password' =&gt; 'xxx',
                'authMode' =&gt; 'xxx',
                'ignoreSslErrors' =&gt; true
  
  ];
  $serviceSettings = new Settings( $options );
  $service = new OrganizationService( $serviceSettings ); 
  $guid="00f1b74b-645c-e911-80c1-005056aa3849" ;   
  $contact = $service-&gt;entity('contact');
   $contact-&gt;firstname='testproduits';
   $contact-&gt;new_produit_demande= new EntityReference('new_produituic',$guid);
   $contactId = $contact-&gt;create();
  </code></pre>
  
  <p>i m expecting to add a contact that the field first name is "testproduits" and the field "new_produit_demande" is the guid</p>