EVENT_JSON:{"standard":"Nep245Event","version":"1.0.0","event":"mt_transfer","data":[{"old_owner_id":"black-snow-event.testnet","new_owner_id":"6f12e5db217de002d58cd93006afc6ec1078634de6918f29710e7cedbd0e27f7","token_ids":["1","2","3"],"amounts":["10","5","3"]}]}