UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2iRMqXfl/1+fDCKDwz310a9kOdS5blKYE9++m8a/ePY=' 
WHERE 
  key_id = '8382f4c71a530bd313953b1cadf62bd18563601fe839408becdc76f395e82279' 
  AND (
    token = '2iRMqXfl/1+fDCKDwz310a9kOdS5blKYE9++m8a/ePY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )