UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'oIcUAre+wLSz7RkNBryTZzCw7WfP98B+lrWEuNoMyM0=' 
WHERE 
  key_id = 'c856c3e1e03039137e1af380c4e14627ac8e40b726543d955321213e8f45ed44' 
  AND (
    token = 'oIcUAre+wLSz7RkNBryTZzCw7WfP98B+lrWEuNoMyM0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )