{
"manageEntity": {
"action": "Save",
"entityId": "4281",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0xd15da493e231da4ae5452d027127bc2d50b7c79a0cf4c9c2139e9829846cca29",
"signature": "0x8b42382bc95a74bd104674d388fa700c71bccdbbffc70288d95de756b1f400fb2c23862b4be272a77da5b0e257c1cfa33bf9732cb00d840b148a2dd9b47093721c",
"signer": "0xB0A368693a6968A4B20dc99D5Bf153a3A60bdeBC",
"userId": "503384759"
}
}