UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ma7Qg+cE4WDqyZYbEP8DlgdmOrhEkva0giLxgj/3HgU=' 
WHERE 
  key_id = 'cd4e66855642edde941fd8af0875f7ce817bbb81dce1a425e39d01d4bb7771e0' 
  AND (
    token = 'Ma7Qg+cE4WDqyZYbEP8DlgdmOrhEkva0giLxgj/3HgU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )