{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb829bedd9c5eb4d1cef8eba953198570db0637ae1a2ef5461c679a76d691385c",
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}