{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7705cbb348be817478ba2eb6f8ae6ab3f231fd28eac94ccaea335fb367ad43c3",
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    "signer": "0xd8aC2321BE15582EaDaD83C073cE7036F1A77634",
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  }
}