UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/zUGTg7KvHy4rRHTiIM93qrfIXFh6BgfQkq9IenxgBE=' 
WHERE 
  key_id = '4a3696902fb294e359ea96fd91e2b814be2cee44a61838e0f865452bb89ff7e2' 
  AND (
    token = '/zUGTg7KvHy4rRHTiIM93qrfIXFh6BgfQkq9IenxgBE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )