1  {"record_type":"node_upsert","id":"user:u1","kind":"user","props":{"user_id":"u1"}}
2  {"record_type":"node_upsert","id":"title:t9","kind":"title","props":{"title_id":"t9"}}
3  {"record_type":"edge_upsert","id":"watched|user:u1|title:t9","kind":"watched","from":"user:u1","to":"title:t9","props":{"continent":"EU","device_type":"tv","ts_ms":1700000000000}}
4  {"record_type":"node_upsert","id":"user:u2","kind":"user","props":{"user_id":"u2"}}
5  {"record_type":"edge_upsert","id":"watched|user:u2|title:t9","kind":"watched","from":"user:u2","to":"title:t9","props":{"continent":"NA","device_type":"mobile","ts_ms":1700000001000}}