{
"manageEntity": {
"action": "Save",
"entityId": "4281",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0xf51a1168818884721014301ca260975544b05b157685c68586fae1dbfee4bd18",
"signature": "0x32309acf45cb8366f3d98122ed0ac3d261cf0eefd57ce20f4a47e28d9317d4b51580ad48dba7fa90de6d555f043067497ab619a15ab5d7987af4bb734dcce76e1c",
"signer": "0x0Ae2c91619041f14ea18BB7C0346203bDb3dd35F",
"userId": "97787724"
}
}