Can't create user from Webservice

[hpar]

Hello,

 

I get this error when I try to create an account from the WS:

This call to PrestaShop Web Services failed and returned an HTTP status of 400. That means: Bad Request.
 

I use the example script : https://raw.githubusercontent.com/PrestaShop/PrestaShop-webservice-lib/master/examples/Create.php

 

I did not found in the doc what are the mandatory fields ?

 

Thanks