{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1a4333cb30f26f7c0006dd4e7a8a61ac70f097f3f93ece205fd347057bd648e2",
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    "signer": "0x407c7ecBdb58F8E513Fb1E3b4a764F67470D2f21",
    "userId": "955023200"
  }
}