UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sEujdMWm/yE8qrautGDpXTSvqe1j977hLX03lxnN8kc=' 
WHERE 
  key_id = '4c50a8c93b3259fdc103b86ced49931beba4f7b1145ebb2b9a97c13d03da3d95' 
  AND (
    token = 'sEujdMWm/yE8qrautGDpXTSvqe1j977hLX03lxnN8kc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )