{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5351a04e50c6edef218f193046fd7f3288e907c0c43b70f0104e4faa20347359",
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}