{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x503b020c47a36a386ecaf9e024d0a949dd39e822c0bccbe75e4b6137b8f33328",
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}