curl --request POST \
  --url https://{tenant}.techea.eu/api/v1/lead/{lead_id}/status \
  --header 'Content-Type: application/json' \
  --header 'apikey: <api-key>' \
  --data '
{
  "status": "converted",
  "advertiser_id": "5490c3cc-0d44-4b50-8888-8dd43736052a",
  "metadata": {
    "amount": 8000,
    "term_months": 24
  }
}
'

{
  "lead_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "status": "converted"
}