UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'D6decY17egxynAfLhoUQs0Fv9b5tV2U8d7hG5Z2z4x0=' 
WHERE 
  key_id = '687661cccd5c96afffb43fa5d5bb0bed4dac44b9daab3d1fd84a1f3a5ced3dbc' 
  AND (
    token = 'D6decY17egxynAfLhoUQs0Fv9b5tV2U8d7hG5Z2z4x0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )