UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'I/xG8QAEIECm6U12VvbU1l9Zwic/xyNsqYwxeKrUCb0=' 
WHERE 
  key_id = 'a50f0eac049c147d4836bb2840d495a809a39f82d1f023987af3030b5d487f6f' 
  AND (
    token = 'I/xG8QAEIECm6U12VvbU1l9Zwic/xyNsqYwxeKrUCb0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )