UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'AkWRU3OzqkbnO8ZpkD1Zi6F+RQt+lah96YnBwGunV/Y=' 
WHERE 
  key_id = '02d7c8f97c13120b76b523fa7be9327577e1f679767794cbcca346a3d0de9b2c' 
  AND (
    token = 'AkWRU3OzqkbnO8ZpkD1Zi6F+RQt+lah96YnBwGunV/Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )