{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2d8e20f3e9148d9ce3a64e964df9ae3e543c16c5d4af6e7949897fcabf162364",
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    "signer": "0xdEba8b8003e0F1433eB0a16276ae38bCC91B5478",
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  }
}