curl --request POST \
  --url https://{operatorDomain}/v1/public/leads \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "jsmith@example.com",
  "name": "<string>",
  "phone": "<string>",
  "message": "<string>",
  "productId": "<string>",
  "captchaToken": "<string>"
}
'

{
  "ok": true,
  "signalId": "<string>"
}