UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'l2f/byjnwCETw1g0Yqoz0OrbtSCRSs9GDC+gBPyqjcc=' 
WHERE 
  key_id = '99a7878c7a392512b03eae85cbcf9c35eec5be69897b9bf6673f08eb26696bd8' 
  AND (
    token = 'l2f/byjnwCETw1g0Yqoz0OrbtSCRSs9GDC+gBPyqjcc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )