{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x821d8ba4ea8675e0ca3c3c7cd226275fd1dff8c923387ad2eb54282d87f44985",
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    "signer": "0x85F40D77142B1fEFf7115d08206EF64fb6aaDA64",
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  }
}