{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc23d40bb7a77326e38c9296e758364a257403af17f2d4e724d1330d500b21277",
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}