How to confirm an AE deposit

I am running an exchange and need add AE to our change, when I develop AE deposit program, something confused me
After I get tx info by v2/transactions/{hash} , I only found recipient_id and type is relative to my deposit. I am a little afraid it is not enough to confirm a deposit and if a forged deposited will made.
I know tokens based on AE mainnet is published, so how to differentiate one deposit is an AE deposit or an AE token deposit?
thanks for you reply.