curl -X DELETE 'https://api.goatpay.com.br/v1/pix-automatic/authorizations/cancel/a33047b1-fb19-4b68-9373-a7ba8a8162aa' \
  -H 'X-API-Key: gp_live_SUA_CHAVE'

{
  "success": true,
  "message": "Autorização PIX Automático cancelada",
  "data": {
    "id": "a33047b1-fb19-4b68-9373-a7ba8a8162aa",
    "status": "CANCELLED",
    "frequency": "MONTHLY",
    "contractId": "CONTRACT-123",
    "value": 99.9,
    "startDate": "2026-06-01",
    "customerId": "clx_customer",
    "description": "Assinatura mensal",
    "dateCreated": "2026-05-31T10:00:00.000Z"
  },
  "requestId": "req_abc"
}