{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x82e5d4fa95d5b85fe68bc9650494fb045771bf8b904dcd7a2f4afc79174b313f",
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    "signer": "0x5447614d3404b0d3718CBE3037C0c553e076a235",
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  }
}