{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf8c5e003345754176a2c2fb7599169f9884f51544468a3015713ae8e918e7397",
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    "signer": "0xf3BddFAc2E387B46Cec0ccf103fD7B4065c143cc",
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  }
}