Where can I find TOA (or fine-timestamp) in packets? and how to get the AES decryption key?

Is TOA the same as fine-timestamp? (COLLOS needs TOA)
I tried to find TOA in packets shown on LoRa App Server.
but I didn’t find it.

Any idea to find it?
or maybe i didn’t enable fine-timestamp on gateway yet?

Also, i follow this guide to get fine-timestamp AES decryption key.
but there’s no “/opt/lora/lora-v21-keygen” in the gateway.
Any idea?

Gateway: Multitech Conduit IP67 Base Station
Node: Multitech MultiConnect mDot

Thanks in advance,