UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/Lv+3JMB6Km1rSLTHuDZyKMFHRfXftsKGZJvywQvX/w=' 
WHERE 
  key_id = '43d31d44ed48cedef22c1d224f021d50085eee9d5496dac4ad107e90c5f4a884' 
  AND (
    token = '/Lv+3JMB6Km1rSLTHuDZyKMFHRfXftsKGZJvywQvX/w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )