{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc8766f9003aa1f66439dce5143ff6fdccc8df71d40d75de689fb604b095dc3e9",
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    "userId": "516824957"
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}