{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5ac3d7d97bdb9cedf92c918ecb6b8e9df2b2f853f5096e52c9702f85b0952f80",
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}