UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cWjPvOQi9iOPw6LVIhRC4+e4/+kIUfqh4wuMPsnS1ew=' 
WHERE 
  key_id = '4488eb608a4e119402a48a55d1dc8191e18c2699a4950db347d7250ebd8e5f50' 
  AND (
    token = 'cWjPvOQi9iOPw6LVIhRC4+e4/+kIUfqh4wuMPsnS1ew=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )