UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r4OMujVY16xam9gbb8qbed8LEB9WI3mQb/yD+G3jSIM=' 
WHERE 
  key_id = '1ab1a1c0a372ec353c586b29616a50078f83a745d2430e17c071d04b15f19a29' 
  AND (
    token = 'r4OMujVY16xam9gbb8qbed8LEB9WI3mQb/yD+G3jSIM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )