{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3c1fbc614990fc32b92b77b49aafac8860b1db0f5baea42cb670ce2fe3ba2639",
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    "signer": "0xd9A54F5D27953D2dCc7321618F25664424365fF3",
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  }
}