{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7c7332bb86e1cf6b9141382f1c29409fe0c5425726c653aa8abb65c2179e2791",
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}