UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WxVDHzObuGqxFMZpuygP3qxqgxvLQW6Y//bwHKrihqg=' 
WHERE 
  key_id = 'a6ed0b35cfe7dd57f2f9af8cadc824fee720c74e73fc33aba1c358e08918465c' 
  AND (
    token = 'WxVDHzObuGqxFMZpuygP3qxqgxvLQW6Y//bwHKrihqg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )