Hello everyone,
I am stuck up with ERD design. I need your help. Following is the scenario.

Admin can create partners. (Admin can create many partner)
partner contains clients. (One partner contains many clients)
one client can create many user.
Admin can also create clients but under any particular partner.
Admin or partner can also add users under any particular client.
How to show relationship between these entities (Admin, partner, client and user.)

Please help me out in ERD. I am new for database design

that sure looks like a hierarchy of people

here's the ERD --