UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Hewqy+o9lSkKKXLkH5PZZOlwGGhdDWNiigwToPVJYKo=' 
WHERE 
  key_id = '51f8b43140c831cabbf7abf23fbc92a504a69916362b01a426b02ce47ba3eb21' 
  AND (
    token = 'Hewqy+o9lSkKKXLkH5PZZOlwGGhdDWNiigwToPVJYKo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )