{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb287dedb9fb7b3b70b1c221a3319b5946b594b9d0a08cdb6621eda83e92ed6bb",
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}