{
"manageEntity": {
"action": "Save",
"entityId": "4281",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0x29d1966f6619f22433f8e0fbcf8224ad358dd64e979166d393a04d3d2e5c34ff",
"signature": "0x33323a83dcf255ccadaa565a8b1e5b14ff765f4f1a19181979706d5ec4cc16b54a86f2f31662f35041165b08186d42720bc87e7a81af723110e7f2febad910911b",
"signer": "0xE084438778162ce5dd4e90f643b9F375cf6D0D53",
"userId": "844726408"
}
}