REST API to get conversation session log is always returning not found message

Summary:

We are trying to get the session log for a particular session using the REST API

/api/v1/bots/sessions/{channelId}/{userId}/{sessionId}/log.

Whatever value we give for the session it is returning as not found. Can someone please explain which is the right values from this file to be used for getting the session log.

Attached the insights dump file from which we are picking the channel d, userid and sessionid.

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