UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KRzq3yu8dfRdxIN6kt1hfbkJ1xVf7txBW0XNzi6cCek=' 
WHERE 
  key_id = '4739ea75c83065ead112e65dfd31cec10573bc1949d9530c0c77b0b1a19fda81' 
  AND (
    token = 'KRzq3yu8dfRdxIN6kt1hfbkJ1xVf7txBW0XNzi6cCek=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )