UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8GdVqDvL3Y92s79sy5TnoaD9NN/L/CmqdJkRxA9kZ/k=' 
WHERE 
  key_id = 'fa40979b74ec49e57bf3cc62c603608d37d6779013914b70c8793afd1d866179' 
  AND (
    token = '8GdVqDvL3Y92s79sy5TnoaD9NN/L/CmqdJkRxA9kZ/k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )