UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'LL1yzIWbj8cV+ARw0s24xDCuE2byVqv1AvD7UB/ofMY=' 
WHERE 
  key_id = '20a208f284930dbc3456279998422d1be4d9ddc9be92ea91b0b1c9605ebc5c09' 
  AND (
    token = 'LL1yzIWbj8cV+ARw0s24xDCuE2byVqv1AvD7UB/ofMY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )