curl -X POST "https://nxw98mm70w.apigw.ntruss.com/baron_sso_sms/v0_3/services/ncp:sms:kr:364022321777:baroncs/messages" \ 
    -H "Content-Type: application/json" \
    -H "x-ncp-apigw-api-key: buhunjq2bq" \
    -d '{
           "service_id": "ncp:sms:kr:364022321777:baroncs",
           "content": "메시지 전송 테스트",
           "messages": [{"to": "01086270921"}]
         }'