{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x61b102babddae697b4b959c435927bf08fa1c686905fce62b45c22433179fadf",
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    "signer": "0x7D89eD1c2C9744b86AE1D1301E8F342289D2f3cB",
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  }
}