scm export code-review command results with Next page token

Dear Team,
We are using below scm command part of SCM Tools,
scm export code-review [options] <queryId><outputFile>
I have query with 100+ Tasks which has Approvals and Findings, which is then passed to above scm command.
Response:
Below is the part of JSON response which has,
nextPageToken": "100",
"workItemQuery": "_h9j6wMRjEeel-PRW6PCzQg"
My query is ,
1. Usually when we fire OSLC Query we will have next page token and URL as well. But in above case i dont see any URL and SCM command reference also doesnt say anything about it.
2. Could you please answer how to get the next result set or what is importance of NextPagetoken here.
Thanks