{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xbf3f8e846964990dc0a3734e22428fbaa389c3d2e561f1cd970f586cb9a8ad17",
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}