UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Nk8rZt0s4M7+iFH43466SiHKcDpJEA1mtatrhge2qrw=' 
WHERE 
  key_id = '940a81b3e6b0398646a5e0d8cb98b07da7c8ae56397bff9c1826e8c8677874e5' 
  AND (
    token = 'Nk8rZt0s4M7+iFH43466SiHKcDpJEA1mtatrhge2qrw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )