UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EzbFIq1qxiEOPM2xtOnkRnVGFOe02dAxlbCLTk8FFak=' 
WHERE 
  key_id = '5977b9c2451fff234446e20c9ed9057d46144f7cc6df92e61758fc9816b87b31' 
  AND (
    token = 'EzbFIq1qxiEOPM2xtOnkRnVGFOe02dAxlbCLTk8FFak=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )