Redis as a cache manager + session manager (Data structuring using redis data type)

Question

i am trying to use redis as a cache and as a session manager. I have my user base in which each user has a unique ID (83837XXX1,83837XXX2 ) and under that i need to hold some information as mentioned in the below figure. Here, i want to know which data types should i use and how, to make it memory efficient.

83837XXX1   ----|------>Profile---------> (key,values)
                |       
                |------>Transactions |--> Credits --> (keys,values)
                |                    |
                |                    |-->xyz. --> (keys,values)
                |
                |------>Session_Web  --> (keys, values)
                |
                |
                |------>Session_App  -->(keys, values)


83837XXXX2  ----|------>Profile---------> (key,values)
                |       
                |------>Transactions |--> Credits --> (keys,values)
                |                    |
                |                    |-->xyz. --> (keys,values)
                |
                |------>Session_Web  --> (keys, values)
                |
                |
                |------>Session_App  -->(keys, values)
. .. . . . . .  . . . . . . . . . . . . . . . . . . . . .  .. 
. .. . . . . .  . . . . . . . . . . . . . . . . . . . . .  .. 
. .. . . . . .  . . . . . . . . . . . . . . . . . . . . .  ..