{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2209e3699b86534dcde7a74c8a04bb7fc4a25770944718120e47d3bd5d0adc2c",
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}