{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x061e66eb301c27906a37f77b1c74ff70aced3db196b382742ebec887afe8d6a7",
    "signature": "0xbbbc3c4f556b9a6758669b553b9f540ef7ff79f478a686d67a6e04522627b9c308b1d1fae29c5bfdd332276115c43fb01a180a7bda09cf8cd1d03959579b7dc11c",
    "signer": "0x0f010E9E28d48Cd0d76AB34a53B81F1c2380f7AC",
    "userId": "247835345"
  }
}