curl --request POST \
  --url https://api.contazen.ro/v1/invoices/{id}/unvoid \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "data": {
    "id": "inv_1a2b3c4d5e",
    "object": "invoice",
    "number": "<string>",
    "series": "<string>",
    "full_number": "<string>",
    "date": "2023-12-25",
    "due_date": "2023-12-25",
    "client_id": "<string>",
    "client": {
      "id": "cli_1a2b3c4d5e",
      "object": "client",
      "name": "<string>",
      "type": "company",
      "email": "jsmith@example.com",
      "phone": "<string>",
      "cui": "<string>",
      "cui_prefix": "RO",
      "rc": "<string>",
      "address": "<string>",
      "city": "<string>",
      "county": "<string>",
      "country": "RO",
      "postal_code": "<string>",
      "iban": "<string>",
      "bank_name": "<string>",
      "contact_person": "<string>",
      "notes": "<string>",
      "is_active": true,
      "is_firm": true,
      "created_at": "2023-11-07T05:31:56Z",
      "modified_at": "2023-11-07T05:31:56Z"
    },
    "currency": "RON",
    "exchange_rate": 123,
    "subtotal": 123,
    "vat_amount": 123,
    "total": 123,
    "subtotal_ron": 123,
    "vat_amount_ron": 123,
    "total_ron": 123,
    "items": [
      {
        "id": 123,
        "product_id": "<string>",
        "description": "<string>",
        "description_extended": "<string>",
        "quantity": 123,
        "price": 123,
        "vat_rate": 19,
        "vat_key": 123,
        "unit": "buc",
        "ubl_um": "H87",
        "ubl_nc": "<string>",
        "ubl_cpv": "<string>",
        "subtotal": 123,
        "vat_amount": 123,
        "total": 123,
        "save_as_product": true
      }
    ],
    "payments": [
      {
        "id": "<string>",
        "amount": 123,
        "payment_date": "2023-12-25",
        "payment_method": "<string>",
        "observations": "<string>",
        "created_at": "2023-11-07T05:31:56Z"
      }
    ],
    "is_paid": true,
    "paid_at": "2023-12-25",
    "is_void": true,
    "voided_at": "2023-11-07T05:31:56Z",
    "void_reason": "<string>",
    "is_draft": true,
    "is_storno": true,
    "storno_for": "<string>",
    "document_type": "fiscal",
    "payment_method": "<string>",
    "notes": "<string>",
    "observations": "<string>",
    "efactura_enabled": true,
    "efactura_status": "pending",
    "efactura_submission_id": "<string>",
    "created_at": "2023-11-07T05:31:56Z",
    "modified_at": "2023-11-07T05:31:56Z"
  },
  "meta": {
    "version": "v1",
    "request_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "response_time": "23.45ms"
  }
}