UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MclzYQT0ngEde0E0K88Gl7HcEvPiiqAVgiT5VPnbQNQ=' 
WHERE 
  key_id = '74ba5e08c8c9c25f17d0abf73081e79154822142a0a3e1bfba5c9fe693c6756b' 
  AND (
    token = 'MclzYQT0ngEde0E0K88Gl7HcEvPiiqAVgiT5VPnbQNQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )