UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'p6dGuTbWpvNw0MZ+fU0Xi/v6dCjUJSJsr+xzOljV5LY=' 
WHERE 
  key_id = '259e3bb15bf52a8ca8e28e71e9e1e4b91735faa37c2a15c6b5f26e845f3aac54' 
  AND (
    token = 'p6dGuTbWpvNw0MZ+fU0Xi/v6dCjUJSJsr+xzOljV5LY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )