{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb38755445d1cff820e786c9778ab9ef1b6622dbdaac7c182631c966830f45514",
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    "signer": "0x39cA0Bb53A1ab273Fe4E61EA8d7098c25F8AA132",
    "userId": "877641555"
  }
}