curl --request POST \
  --url https://{operatorDomain}/v1/admin/legal/contracts/{id}/sign \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "signerName": "<string>",
  "signerEmail": "jsmith@example.com",
  "signerRole": "<string>",
  "signatureData": "<string>"
}
'

{
  "data": {
    "contract": {
      "id": "ctr_01HZX...",
      "title": "<string>",
      "status": "draft",
      "contractNumber": "<string>",
      "bookingId": "<string>",
      "templateId": "<string>",
      "templateVersionId": "<string>",
      "language": "en",
      "body": "<string>",
      "createdAt": "2023-11-07T05:31:56Z"
    },
    "signature": {
      "id": "<string>",
      "contractId": "<string>",
      "signerName": "<string>",
      "signerEmail": "jsmith@example.com",
      "signerRole": "<string>",
      "signatureData": "<string>",
      "signedAt": "2023-11-07T05:31:56Z"
    }
  }
}