UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Gj0saZ4XLpQIyl3yvV86N2+VptTu5DPSPLjHPKnOZzU=' 
WHERE 
  key_id = '793462ab0a6dc6915e8e0371a5aac6b8d7aee1b80e75e8775872333233c15611' 
  AND (
    token = 'Gj0saZ4XLpQIyl3yvV86N2+VptTu5DPSPLjHPKnOZzU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )