{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4579e554f69a49881d2d0f5e78a421dacfd858a4b630f7c858cbf2a61ddbfe56",
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}