UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nxU8Eo/rfaJFAb02xTo/CMw5xlOnv/snh0Ghzb/jrr0=' 
WHERE 
  key_id = 'c2ae1532fc7490376470571e2c37b8e2e1aff36df2d8cac187b663edb12d8d16' 
  AND (
    token = 'nxU8Eo/rfaJFAb02xTo/CMw5xlOnv/snh0Ghzb/jrr0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )