{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x443e6f8ca84cc6aab627b5b75043b354260579c1cecf88dd75ca69419d771e4c",
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    "signer": "0x815583947a7E1A62F9c2721a9aB961bB67Ef5c99",
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  }
}