{
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    "action": "Save",
    "entityId": "437730054",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x418f65b43aa4963fc94175fd3768264e4d34eed07532ad1ee68c7c1be16c32dc",
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    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
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  }
}