GET-parametrit:
  params={"firstname":"Etunimi","lastname":"Sukunimi","username":"esim_01","email":"esim@esim.fi","lms_user_id":1,"lms_course_id":"111","dikaios_resource_uid":"77130FB4-FD8A-7BF2-770B-BA3801DBAAB3","organization_id":null,"resource_url":"JULKA-URL","publisher_material_id":"JULK123","user_role":"teacher","city":"Tampere","city_id":"0211675-2","school":"Demokoulu","school_id":"12345","demo_mode":0,"preview":1,"token_date":"2014-10-15T07:28:13+00:00","version":3}
  hmac=67705f0f0dd0ce5b990600c01303e3152c8449ed


Tieto:
  firstname=Etunimi
  lastname=Sukunimi
  username=esim_01
  email=esim@esim.fi
  lms_user_id=1
  lms_course_id=111
  dikaios_resource_uid=77130FB4-FD8A-7BF2-770B-BA3801DBAAB3
  organization_id=
  resource_url=JULKA-URL
  publisher_material_id=JULK123
  user_role=teacher
  city=Tampere
  city_id=0211675-2
  school=Demokoulu
  school_id=12345
  demo_mode=0
  preview=1
  token_date=2014-10-15T07:28:13+00:00
  version=3


datetime: 2014-10-15T07:28:13+00:00
aikaerotus: 140177700 sekuntia
Viesti on vanhempi kuin 30 sekuntia.
hmac: 67705f0f0dd0ce5b990600c01303e3152c8449ed
laskettu hmac: 67705f0f0dd0ce5b990600c01303e3152c8449ed

VIESTI ON AITO