UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U+POwP+y83K4PyTwRlzIJtng/ldtUvocGDokMzzUP+M=' 
WHERE 
  key_id = 'e59758887e1afb6871824d04e5e4c882c38f452ea0f785804f0b113d16a00b04' 
  AND (
    token = 'U+POwP+y83K4PyTwRlzIJtng/ldtUvocGDokMzzUP+M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )