UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gNVXLINXokN8kBHNUiggyYeDfySDGr5uR73v+gWGQBI=' 
WHERE 
  key_id = '6fe804fe23e520028d2debfb34ea6f9025ee36d8370b5342d325b5fb0d668583' 
  AND (
    token = 'gNVXLINXokN8kBHNUiggyYeDfySDGr5uR73v+gWGQBI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )