1) Why are you trying to use port 1636 for SCIM? That is the LDAP port... So of course LDAP cannot understand the SCIM protocol. SCIM interfaces are provided by oxTrust, which runs on 443.
2) In the second request, I don't understand why you are passing the admin creds. In SCIM, you should create a Custom Interception Script Authorization policy that allows your client to call the SCIM API.
3) I see the Bearer token, how did you obtain this token?
Please read carefully the [Gluu Sever Admin Guide](http://www.gluu.org/docs/admin-guide/user-management/#scim-oxauth-authentication) and the [Gluu Server SCIM Reference](http://www.gluu.org/docs/admin-guide/SCIM/)