UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'I2g49F7XP7DwLJsCsk4hjdIDVU7PNYwiKHmhLdkLEqo=' 
WHERE 
  key_id = '5ce2b49178f69a9d9d87e20c253709dcc8c53c9e9f4b9fccca015499a29b0688' 
  AND (
    token = 'I2g49F7XP7DwLJsCsk4hjdIDVU7PNYwiKHmhLdkLEqo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )