curl --request POST \
  --url https://api.aimtell.com/prod/subscriber \
  --header 'Content-Type: application/json' \
  --header 'X-Authorization-Api-Key: <api-key>' \
  --data '
{
  "idSite": "<string>",
  "subscriber_uid": "<string>",
  "user": "<string>",
  "email": "<string>",
  "attributes": ""
}
'

{
  "result": "success"
}