{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2f12abb0f4a43208ae2d1a5c347e20037fbddc716c307ffc252924ca1fcf9cc8",
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    "signer": "0x91988274645Ac38858e5dA1c49C63A8B2C3D81cb",
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  }
}