curl --request POST \
  --url https://api.example.com/edition/config/assign-isms-within-isms \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "editionID": 123,
  "concatIDWithTwoIsmsPrimary": 123,
  "concatIDWithTwoIsmsAlternate": 123,
  "ismIDUsedWithinBoth": 123
}
'

{
  "success": true,
  "data": "<unknown>"
}