Create new user:
curl -XPOST -H "Content-Type: application/json" -d '{
  	"name":"User",
  	"email":"user@graf.com",
  	"login":"user",
  	"password":"userpassword"
}' http://admin:admin@localhost:3000/api/admin/users

Change password:
PUT /api/admin/users/:id/password
PUT /api/admin/users/2/password HTTP/1.1
Accept: application/json
Content-Type: application/json

{"password":"userpassword"}
---------------------------------------------------------------
Change password for "user" which has :id = 2 :
curl -XPUT -H "Content-Type: application/json" -d '{
  	"password":"newpassword"
}' http://admin:admin@localhost:3000/api/admin/users/2/password

Permissions
curl -XPUT -H "Content-Type: application/json" -d '{
  	"isGrafanaAdmin": true
}' http://admin:admin@localhost:3000/api/admin/users/2/permissions

Delete global User
curl -XDELETE -H "Content-Type: application/json" http://admin:admin@localhost:3000/api/admin/users/2

Map all users
curl -XGET -H "Content-Type: application/json" http://admin:admin@localhost:3000/api/users?perpage=10&page=1