{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x10b6382d4c2953423756d5dcd91a3bb78eee4886b3be9df5ef512056d6b98dff",
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}