original.put("createdTime", 1234567890L);

        final String json = coordinatorHelper.toJson(original);
        final Map<String, Object> parsed = coordinatorHelper.parseJson(json);

        assertEquals("operation", parsed.get("type"));
        assertEquals("reindex", parsed.get("name"));
        assertEquals("running", parsed.get("status"));
        assertEquals(1234567890, ((Number) parsed.get("createdTime")).longValue());