{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x564e081e4cca1db5485a1a0ee34394caaf5ea8843b534d8493ca4ef2f497c759",
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}