curl --request POST \
  --url https://sell.ia.proativia.com/api/v1/lead/label \
  --header 'Content-Type: application/json' \
  --header 'Token: <api-key>' \
  --data '
{
  "name": "<string>"
}
'

{
  "id": "<string>",
  "name": "<string>",
  "color": "<string>",
  "createdAt": "2023-11-07T05:31:56Z"
}