Don't understand it but I now have access to gold level. I installed the latest version of the software and the Update subscription button worked.
I believe that you are refering to Gold libraries in Electrical Content Portal.
For 2016, access to the Electrical Content Portal has changed. Since 2016 SP0 version, any SOLIDWORKS Electrical users are able to gain access to the ECP gold libraries through the “Update Subscription” feature. The steps are as follows.
1. Start Manufacturer parts manager.
2. Update Subscription
3. Click yes and log into the ECP using your mail and password (if you don´t have, just create)
4. You now have gold level access.
Thank you for explaining Durval!