{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6282fb6dcb4b3db7853927da5d8b15ef306aaccadb46023a985722aea231d558",
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    "signer": "0x6fCF27923aE49B784D4ddADC3b0295b49e8403f3",
    "userId": "503591447"
  }
}