{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4f13bb8f9ec5e7b03fc62b8d0b14e0698c7c663311f30eafddc9f8a54b6574f9",
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}