Add user message

<?xml version="1.0" encoding="UTF-8"?>
<methodCall>
  <methodName>adduser</methodName>
  <params>
    <param>
      <value><string>login</string></value>
    </param>
    <param>
      <value><string>md5_password</string></value>
    </param>
    <param>
      <value><string>login:userlogin</string></value>
    </param>
    <param>
      <value><string>name:username</string></value>
    </param>
    <param>
      <value><string>email:user@domain.com</string></value>
    </param>
    <param>
      <value><string>password:12345</string></value>
    </param>
    <param>
      <value><string>mailalias:useralias1@domain.com;useralias2@domain.com
      </string></value>
    </param>
  </params>
</methodCall>