So I shouldn't sign into my account on another PS4?

I have my old original PS4 in the basement where I'm setting up my wheel\rig. But my GT Sport save file, liveries, replays etc are on my other PS4 upstairs.

So if I sign in to my account on the secondary PS4 downstairs, will it overwrite my file and I will lose my liveries and stuff?

What I should do?
 
But my GT Sport save file, liveries, replays etc are on my other PS4 upstairs.

So if I sign in to my account on the secondary PS4 downstairs, will it overwrite my file and I will lose my liveries and stuff?
Yes, unless you copy your save data file from one PS4 to a flash drive, then put it onto the other PS4.
 
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