{
"manageEntity": {
"action": "Save",
"entityId": "825855649",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0xa388c6f8d76cb2b9bd0369f5d2965d50e15de95c6044cf1687197cff1c5efd5b",
"signature": "0x752b47f8b97e256372e013bef17eb763a623af4bf2e438c089566b580bf0a7ea1f8b9f1f49c4b6b78a88ce8fd8ea254d7d40d0c121308bdaf75b33b94ed17d8d1b",
"signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
"userId": "100976759"
}
}