UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ok2NP2UeabuctbnqwiYcouKeBmGcmAE7kw0cCGNywKU=' 
WHERE 
  key_id = '6b8f8d100f28b356a0f0d66bcfd403193ed4a4e825ee1abbc95362aea99eb976' 
  AND (
    token = 'ok2NP2UeabuctbnqwiYcouKeBmGcmAE7kw0cCGNywKU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )