{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x16ac011eccf0bbef409a390c36836efd0b8860dcbfd63c0aaa69a7b5a44d411e",
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    "signer": "0xf88Ce054be507EBB6C9Df38466f8E7bC0203c33d",
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  }
}