{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa7c92e4877798b552c35bb1d80eba2f93f87a077f9262e00e8c426523a452045",
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    "signer": "0x2AF4Cbd187E60f9d2aCB72E6F7b97e2515973e2A",
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  }
}