{
  "manageEntity": {
    "action": "Save",
    "entityId": "4629",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x57bca8aa7701082240ae0c56f8c3e2b0e1c412a4dd317787d9f175d8948d8e5c",
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    "signer": "0x6F272bE0cf1929131937536d1E57b571a5bEd994",
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  }
}