UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Exkb4Olh/JNKIpy/e6bmIx8O6s63VuxTU6MA2t2CqFM=' 
WHERE 
  key_id = '205969274bb5081b0469fa7feb55cceed154fa8beab25944d088233521b11739' 
  AND (
    token = 'Exkb4Olh/JNKIpy/e6bmIx8O6s63VuxTU6MA2t2CqFM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )