UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rBVGNHcaHs+DmOqDWjQv/CwmkDiGRIgS2aR8A50/Z2A=' 
WHERE 
  key_id = 'a251a489b3b19210c99cf350546979612c675bec3ee6799d07f65a7ac2c513c2' 
  AND (
    token = 'rBVGNHcaHs+DmOqDWjQv/CwmkDiGRIgS2aR8A50/Z2A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )