UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EzyDyWduoFqsHGlZhOxOH/B5CrKNphA0cSiAjUEt+Tw=' 
WHERE 
  key_id = '75a6b2e860c318cf452f3a102244faf37ac90fb01340c3b97fcfa1c5675f1c32' 
  AND (
    token = 'EzyDyWduoFqsHGlZhOxOH/B5CrKNphA0cSiAjUEt+Tw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )