{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdec761d325f5ea85f8ad28b9a6e346990fcd48e29a1f51246ca88828ee04b505",
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    "signer": "0x3aBfdda7Fe70573Bf3a32f951e6cFf35e8E00047",
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  }
}