UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MJk638jafmxXaM65gLWDyZPejIvOKOVtxxKnQXBQjDk=' 
WHERE 
  key_id = '2d30462b0743a6c45e43016275a072fdb04c2d3250a904273c9282c8d1823354' 
  AND (
    token = 'MJk638jafmxXaM65gLWDyZPejIvOKOVtxxKnQXBQjDk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )