This varies in strange ways. I dont know how facebook does this and if i could get more but i have seen facebook datasets from three people including mine.

Usualy it is all photos and vids yove uploaded, comments etc.

Mine was most complete. Including some sort of keywords tags i am interested in. Not things i followed but what fb thinks i like.

Other datasets did not include this but one included all the times someone connected to the account including IP and location.