{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xed15c5ad5364ebb5100d9c6e7aa498d5723af19cbd1c6d484492c01d6e520828",
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}