UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kE2GaRbn2VnzdUX2xUsXkA7Xsy+yeYPOSB5tuD+ETYs=' 
WHERE 
  key_id = 'cc3557d51103a10bfbc474f40d11f0ce2535385bb8a3a2d2a8632b8c4acff409' 
  AND (
    token = 'kE2GaRbn2VnzdUX2xUsXkA7Xsy+yeYPOSB5tuD+ETYs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )