UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5XWUMEQx8q7SQr19O5SCZBEssK1rqdzGqo9Q7vnNm/k=' 
WHERE 
  key_id = '940c4b50c852665aabc3113b39344f84b3723c327768f146516b7bc4f690d207' 
  AND (
    token = '5XWUMEQx8q7SQr19O5SCZBEssK1rqdzGqo9Q7vnNm/k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )