UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Jh0/3FX7lCpU6syyjPG5h1UQiR1xAZuoJe8Kes9mnAo=' 
WHERE 
  key_id = '2c42b51a3f5a67be83d2d1454ab613828cfcd27dda4bdd341a7daef2f041e834' 
  AND (
    token = 'Jh0/3FX7lCpU6syyjPG5h1UQiR1xAZuoJe8Kes9mnAo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )