UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+9MLmsw4YgSdYea/YYkPt+D2LMpdKMZRKoEAthCPUrg=' 
WHERE 
  key_id = '20cf555fd94b1a5e01ab7505f1a6bc7ca8f3db36a812bf6f60aa0e0daaa51e3c' 
  AND (
    token = '+9MLmsw4YgSdYea/YYkPt+D2LMpdKMZRKoEAthCPUrg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )