OUTPUT:

User 900000001
    Network1
         Login

User 900000002
    Network1
         2019-11-07T20:31:10.000Z
        2021-02-19T13:47:25.000Z
        2021-03-10T13:58:50.000Z

User 900000007
    Network1
         2021-03-10T17:11:24.000Z
        2021-02-18T08:34:58.000Z
        2021-01-25T17:19:44.000Z

User 900000009
    not logged in

User 900000010
    not logged in

User 900000011
    not logged in

User 900000012
    not logged in

User 500000008
    Network1
         2021-03-10T17:11:24.000Z
        2021-03-11T17:12:42.000Z
    Network2
         Not Used
    Network3
         Not Used