Baiyun Airport Metro Station

Hi, I shall be arriving Baiyun Airport from Kuala Lumpur by Airasia on 20.20. Wish to reach Guangzhou East Metro Station. From which station should I take the train at the airport? Airport North or Airport South Station? I think that the last train is 23.00, do I have enough time to get the train? How long does it takes from the airport to the East Metro Station? Is it safe to take Metro in that city? Should we aware of professional pickpocket in the train? Tks.