EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"trait_swap","data":[{"token_id":"6887","old_trait_id":"34434","new_trait_id":"50875"}]} EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"trait_swap","data":[{"token_id":"6887","old_trait_id":"34435","new_trait_id":"50876"}]}