UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'K6IwB2NQszuMwWKPBTRRDvhgdzEQLjSajAZZzjex7pY=' 
WHERE 
  key_id = '48fb8f9b0763795f4f2e5887f8140e39579dcdba3135b67e6e98efdafc6c3df9' 
  AND (
    token = 'K6IwB2NQszuMwWKPBTRRDvhgdzEQLjSajAZZzjex7pY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )