{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbed2a270f678495bab368370c08f147cf1484f94f0bbc361b76367e0400b31c2",
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    "signer": "0xaBca4973b8911Fb110a95E6e00e5BBFBCa671473",
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  }
}