UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cWKYcG6OoSSENP+1uW9er1CGLPAXGe/7XdPHt1j++Rg=' 
WHERE 
  key_id = '96ecc94897b50e5777b0675e87d505c0d58d1b69135879c47416b91b0d31b02f' 
  AND (
    token = 'cWKYcG6OoSSENP+1uW9er1CGLPAXGe/7XdPHt1j++Rg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )