UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3GW7qnbWfuvgw4zhhqW0z616XYOKbgM3bXNu/7egoiE=' 
WHERE 
  key_id = '2c11418f0f70dc003c706e0bf8f5e82515c61ac1f35fcbcab407d1252e375140' 
  AND (
    token = '3GW7qnbWfuvgw4zhhqW0z616XYOKbgM3bXNu/7egoiE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )