UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RXdMEBV58+lM3m86v8UPi4EfD0wNhO02gSgZENA8/nA=' 
WHERE 
  key_id = '7938a41d81960a796d97d3aa615c0a9a4994708cc228b026a70b604f040d8da8' 
  AND (
    token = 'RXdMEBV58+lM3m86v8UPi4EfD0wNhO02gSgZENA8/nA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )