{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8569e9e838e62a2706f2a1d98191f4fbbef1c245fff5fc3628ceeefa34278724",
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}