UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'OclXEhunGZMmkOe53vGLqbMlt6CZ+BraGKGfMeC9X+A=' 
WHERE 
  key_id = '7bbaff28daa83ec51ff7ee275b2dc58d7cb8d9caec57c22ea7ebc2996335b45f' 
  AND (
    token = 'OclXEhunGZMmkOe53vGLqbMlt6CZ+BraGKGfMeC9X+A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )