{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2495beab5d134055f48531a3475417c4ea90d9ef4a92a94ba81a32011783f0c1",
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    "signer": "0x2A7605b91fFB317Bc4CCaa145120a20f7ED40f9b",
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  }
}