%user_data = $cookies{'user'}->value;
print($user_data{field1}, "\n");
print($user_data{field2}, "\n");

##</code><code>##

$user_cookie = new CGI::Cookie(
   -name => 'user',
   -value=> {
      field1 => 'value1',
      field2 => 'value2',
   }
)

##</code><code>##

user=field1&value1&field2&value2; path=/