Change User Password

{
  "username" : "root",
  "password" : "root",
  "q" : "change-user-password",
  "p" : {
    "username" : "username1",
    "new-password" : "password2"
  }
}

Sets the password of the specified user to the specified password. A valid old password of
the user is not required to set a new password for the user, but the connecting user needs
to have the manage-user role to set the password for another user. If the user who’s
password is to be set is same as the connecting user, then no role or permission is required
for the operation to succeed.

Response Structure

{
  "ack" : "1",
  "time" : 1000
}

Provides a simple acknowledgement confirming a change of password. If this response is
an ack value of 1, it ensures the password change and the old password will no longer
work.