{ "deviceId": "00008030-001529902ED0402E", "prefix": "", "code": "4" }
curl --location '/openapi/bleKeyPressChar' \ --header 'Content-Type: application/json' \ --data '{ "deviceId": "00008030-001529902ED0402E", "prefix": "", "code": "4" }'
{ "code": 0, "msg": "string" }