{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x84061a401ae0069acd5b18e687e740b69878b7f8f498466c18a694ae4c4205d6",
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    "signer": "0xeFcB77ccFb1e718f5Af3E467464519E99cb2555a",
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  }
}