{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x27f1d6720730a9cd22049313396574cd7e9b5fd89eacd54c6b87c2c44bf097ce",
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    "signer": "0x468AbC9afC5a4ABd5839DD8e35934E5a272704c6",
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}