{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x51663fccbf7cfe5fa6f8e281f85f92482a71d6d9d878e8bb18f76588d6e70947",
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    "signer": "0x3BA6454eB2EcCD2f8c7A6f46C198fB0C13D60658",
    "userId": "872763461"
  }
}