{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x50013c972138d9af87b7f9d2bb07ec5b8e136d98aafca96814de7bec9b61776a",
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}