UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WS5C9jTRj+X5KbzXi3KE5mIILEDnOFvNLJ9pOt3oANw=' 
WHERE 
  key_id = '0788136181ea280e08e71dbfc268e91fa8ce37863e3a365f742a2c19841c9e7b' 
  AND (
    token = 'WS5C9jTRj+X5KbzXi3KE5mIILEDnOFvNLJ9pOt3oANw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )