{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd53eecfbd7d3c95375c622b860866794a426d96bed0638d149a794bc0a5064d9",
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    "signer": "0x3e6886604E69914070Cc1BEf8f5944C0C5533F32",
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  }
}