https://api.sciener.com/v3/keyboardPwd/add
Only the locks with V4 passcode can add a customized passcode via bluetooth or gateway.

Name	Type	Required	Description
clientId	String	Y	The app_id which is assigned by system when you create an application
accessToken	String	Y	Access token
lockId	Int	Y	Lock ID
keyboardPwd	String	Y	Passcode
keyboardPwdName	String	N	Passcode name
startDate	Long	Y	The time when it becomes valid, timestamp in milliseconds
endDate	Long	Y	The time when it is expired, timestamp in milliseconds
addType	Int	N	Adding method:1-via phone bluetooth, 2-via gateway, 3-via NB-IoT. The default value is 1 and should call SDK method to add passcode first. If you use the method 2, you can call this api directly.
date	Long	Y	Current time (timestamp in millisecond)

Parameter	Type	Description
keyboardPwdId	Int	Passcode ID

{
    "keyboardPwdId": 24242
}