UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '75L7mnmRo7HAoyOnm0UqfWGnlJOqdTeAMe5uOaFT+bU=' 
WHERE 
  key_id = '4eb750ecd8a69fceb3834026a03ea1feed8d6cc7d0c3f40ae529a9ece1a4f839' 
  AND (
    token = '75L7mnmRo7HAoyOnm0UqfWGnlJOqdTeAMe5uOaFT+bU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )