1
00:00:04,000 --> 00:00:08,000
{"productId": 1}

2
00:00:08,000 --> 00:00:12,000
{"productId": 2}

3
00:00:12,000 --> 00:00:16,000
{"productId": 3}

4
00:00:16,000 --> 00:00:20,000
{"productId": 4}