UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L8uw+T/qr5ObnJcq+Az+0z9UPGPfMX3tIZvkmj0e/xc=' 
WHERE 
  key_id = '3c421ff9cc80df1343cf1a38ec34f09dae310963a8b12fbd0a3018a752546a2d' 
  AND (
    token = 'L8uw+T/qr5ObnJcq+Az+0z9UPGPfMX3tIZvkmj0e/xc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )