Elon Musk will soon send people to the moon and we still cannot expire fields on redis :(
Anyway the solution I've been come up with is:
Lets say I want to expire every 3 minutes:So im holding the data in 3 fields 0 1 2.and then i do module% 3 to current time in minutes.
if the module for example == 0so im using only 1 2 and 0 i delete;then it change to 1 so im using 2 and 0 and delete 1.
Im not using it and i didnt checked it but im just let you know its possible