{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x0dff01d1c9f901d536ac23b5c3a82962db483b51a25b98635870310c362c79fb",
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    "userId": "26938020"
  }
}