{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1696c07963cf4f3cc6d1260fbbce5206f6349290c67f5cda2162b1ed44c28240",
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}