{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x320ef1ab2f47d31fe5cc8e195ee69fec6c67c50dbddfbbb4494e0f6224f7067f",
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    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
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  }
}