{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2b4bd4fe52cc709aec659a23f043b03717d5ee1741f04aef3f3380c8e7dd4472",
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}