{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4a2bc3bd9b5aba5882054904a255ead0632c99efa969bfc94109f4608c572b43",
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    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
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  }
}