{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xca94f572c89f0adff07b04101a52ff775fee13779d41a49c5a2c9a0dc1bc96d1",
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    "signer": "0xAf41d5deF73a190FeC613913d0F353d5327aabd6",
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  }
}