{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5c7cc98c4b9631d27b28bebc746da811d6cf6bf3326f8af693368ee93d227f06",
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    "userId": "101980511"
  }
}