UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '351WNy/U/ToqdwcPdQeRjoYvae9pmkDdEJrJFaeuQ6E=' 
WHERE 
  key_id = '938e76325746af4f7b864a7fba1ccda61833bc9df1c94ac7d99d64d2d83ac957' 
  AND (
    token = '351WNy/U/ToqdwcPdQeRjoYvae9pmkDdEJrJFaeuQ6E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )