{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2223409aefc74fda89f7188f2d9ae428aeca0ee20db94b1e1a5734b185bc970d",
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  }
}