https://api.sciener.com/v3/key/send
The admin of the locks can't send ekeys to himself
For one lock, any user can only have one ekey.If you send an ekey to someone who already have one, the previous one will be deleted.
Note:It will be a permenant ekey when you set the startDate and endDate to 0

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
receiverUsername	String	Y	The receiver's username
keyName	String	Y	Key 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
remarks	String	N	Comment
remoteEnable	Int	N	Is remote unlock enabled: 1-yes,2-no
createUser	Int	N	Auto create Sciener account if receiverUsername is not a registered Sciener account: 1-yes, 2-no (default), this parameter take effect only when receiverUsername is a mobile number or email, the created account's password is the last six characters of the username.
date	Long	Y	Current time (timestamp in millisecond)

Parameter	Type	Description
keyId	Int	ekey ID
errcode	Int	Error code
errmsg	String	Error message

{
    "keyId": 234522,
    "errcode": 0, 
    "errmsg": "none error message"
}