How do I erase data from app?

[AC Question]

I want to erase data for game Simcity Buildit so I can start from the begining. As soon as I try to connect to Google play account or to my Facebook account he gives me a choice to connect to my old city or continue play localy with my new town. So, where do I find data for this app so I can erase it? I tried in settings several times. No result.