ID de la cuenta.
curl -X POST 'https://app.yampi.ai/api/v1/accounts/1/contract_submissions' \
-H 'api_access_token: TU_TOKEN' -H 'Content-Type: application/json' -d '{}'
Crea un envío de contrato (plantilla + firmantes).
curl -X POST 'https://app.yampi.ai/api/v1/accounts/1/contract_submissions' \
-H 'api_access_token: TU_TOKEN' -H 'Content-Type: application/json' -d '{}'