webman使用curl发送post接不到参数

$postData = [
                    'token' => $encryptedDataWithIv, // 将数据直接作为键值对
                ];

                $response = $client->post($apiUrl, ['form_params' => $postData]);
                $loginInfo = $response->getStatusCode();
                Log::info("日志",['apiUrl'=>$apiUrl,'postData'=>$postData,'status'=>$response,'refToken'=>$resultData]);