curl --request POST \
  --url https://api.example.com/v1/crm/leads/{leadId}/signing/verify \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "signingToken": "<string>"
}
'

{
  "verified": true,
  "leadId": "<string>"
}