curl --request POST \
  --url https://api.comm.com/api/v1/enrichment/mnp/calc-contacts-count \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "filterModel": {
    "country_id": {
      "filterType": "number",
      "type": "equals",
      "filter": 225
    }
  }
}
'

{
  "amount": "<string>"
}