UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vh2eBB7hQzb/gaZR58Y0/xHXqWIzzQtUHBjT8NIq3AM=' 
WHERE 
  key_id = '8ef640dd3508005b85b407aa2e0656440e64e8ce8d4bae51de25f3595dd37378' 
  AND (
    token = 'vh2eBB7hQzb/gaZR58Y0/xHXqWIzzQtUHBjT8NIq3AM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )