{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x94b870b2c8e2dedaf7a7c1eadf754c993698e4539472d94b18ea6d622b8bbb1d",
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}