{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xafd8b46890896f7e08d07f10c0e85edce527aef80312b59af2c066f39ca57538",
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    "signer": "0x447887A35958D25Fb5B659937312606ec7E55dBb",
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  }
}