curl --request POST \
  --url https://api.example.com/admin/iser/update \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "forIserCode": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "forIserID": 123,
  "languageID": 1,
  "bio": null,
  "countryAbbreviation": null,
  "email": null,
  "featuredWebsite": null,
  "firstName": null,
  "handle": null,
  "lastName": null,
  "phoneNumber": null,
  "primaryLanguageID": 123,
  "primaryEditionId": 123,
  "timezoneID": 123,
  "isSuspended": 123,
  "whatsAppCountryAbbreviation": "<string>",
  "whatsAppNumber": "<string>",
  "birthMonth": 123,
  "birthYear": 123
}
'

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