{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3647c76a06444c460e86cad72a255f9051fdfdac3895dcca342394337ac7352f",
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    "signer": "0x4d3E6848a8a1272cbB333b35616e0C22CBD3366B",
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  }
}