/api/device/add
{"name":"TESTDEVICE","sn":"HOWELL1234567"}
MD5Util.md5Jdk(jsonStr + "8897a669a8d4cdce6c6ca50b8c22cb5a")
9fbbb3f61507ac1245da2d06871342af
{"name":"TESTDEVICE","sn":"HOWELL1234567"}
eyJuYW1lIjoiVEVTVERFVklDRSIsInNuIjoiSE9XRUxMMTIzNDU2NyJ9
{
"data": "eyJkYXRhIjp7Im5hbWUiOiJURVNUREVWSUNFIiwic24iOiJIT1dFTEwxMjM0NTYifX0="
}