UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'W6TxSwkCjfWuN4LQDakAuLC1XmCVvd056hy1dn9bJxg=' 
WHERE 
  key_id = '793d4a9c54b3d95a12de47bbfaa59dab587a4b4342f8f65ef8205dd7be393a49' 
  AND (
    token = 'W6TxSwkCjfWuN4LQDakAuLC1XmCVvd056hy1dn9bJxg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )