Заполнение юридических реквизитов

{
   "Envelope":{
      "Header":{
            "PayloadNamespace" : "http://moneta.ru/schemas/messages-frontend.xsd",
                 "Security":{
            "UsernameToken":{
               "Username":"Username",
               "Password":"Password"
            }
         }
      },
      "Body":{
         "SaveLegalInformationRequest": {
                "legalInformation": {
                	"unitId": "12345",
					"id": 1878,
                    "okato": "00000000"
               }
            }
            }
         }
       }

{
   "Envelope":{
      "Header":{
         "PayloadNamespace":"http://moneta.ru/schemas/messages-frontend.xsd",
         "Security":{
            "UsernameToken":{
               "Username":"Username",
               "Password":"Password"
            }
         }
      },
      "Body":{
         "SaveLegalInformationRequest":{
            "legalInformation":{
               "unitId":"12345",
               "id":1878,
               "okato":"00000000"
            }
         }
      }
   }
}

<?php
if (isset($_POST['unit_id']) && isset($_POST['submit'])) {

    $sdkAppFileName = __DIR__ . "/../moneta-sdk-lib/autoload.php";
    include_once($sdkAppFileName);

    try {
        $monetaSdk = new \Moneta\MonetaSdk();
        $username = $monetaSdk->settings['monetasdk_account_username'];
        $password = $monetaSdk->settings['monetasdk_account_password'];
        $url = 'https://demo.moneta.ru/services';

        $requestData = [
            "Envelope" =>
                [
                    "Header" =>
                        [
                            "Security" =>
                                [
                                    "UsernameToken" =>
                                        [
                                            "Username" => $username,
                                            "Password" => $password,
                                        ],
                                ],
                            "PayloadNamespace" => "http://moneta.ru/schemas/messages-frontend.xsd",
                        ],
                    "Body" =>
                        [
                            "SaveLegalInformationRequest" =>
                                [
                                    "legalInformation" =>
                                        [
                                            "unitId" => $_POST['unit_id'],
                                            "id" => $_POST['doc_id'],
                                            "okato" => $_POST['okato'],
                                            "okved" => $_POST['okved'],
                                        ],
                                ],
                        ],
                ],
        ];

        $requestData = json_encode($requestData);

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json;charset=UTF-8'));
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $requestData);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

        $result = curl_exec($ch);
        curl_close($ch);

        $result = json_decode($result, true);

        if (!$result['Envelope']['Body']['SaveLegalInformationResponse']['id']) {
            throw new Exception(print_r($result, true));
        }

        echo "Юридические реквизиты успешно сохранены.";

    } catch (Exception $e) {
        echo "Произошла ошибка:<br />";
        echo "<pre>" . $e->getMessage() . "</pre>";
    }

} else {
    echo '
        <form method="post">
            unit ID организации (площадки):<br/>
            <input type="text" name="unit_id" required="required"/><br/><br/>

            ID документа юридических реквизитов:<br/>
            <input type="text" name="doc_id" required="required"/><br/><br/>

            ОКАТО:<br/>
            <input type="text" name="okato" required="required"/><br/><br/>

            ОКВЭД:<br/>
            <input type="text" name="okved" required="required" placeholder="XX.XX.XX, XX.XX.XX"/><br/><br/>

            <input type="submit" name="submit" value="Сохранить юридические реквизиты"/>
        </form>
    ';
}