UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ol2CJ7lkrI7SAJKXezYvMzc4kNqYrPf3z7oLB/IzXGw=' 
WHERE 
  key_id = 'ad520e51864df23166d0d6c51c3fc7c95ffa56ef40edacde8e5b83693e4d3c14' 
  AND (
    token = 'Ol2CJ7lkrI7SAJKXezYvMzc4kNqYrPf3z7oLB/IzXGw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )