UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5AWqWQ812EvXER2Iw/dBtZsXd5tzcFssQF6eZAYbK48=' 
WHERE 
  key_id = '50b2548c40c59423a1fd28b0221bbc009236df6029db4b02bd1516f47f34c3b8' 
  AND (
    token = '5AWqWQ812EvXER2Iw/dBtZsXd5tzcFssQF6eZAYbK48=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )