{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4492cc98ae97010f0dc37904461e6605efb8537d7e0cf3f76e8b70d9fae7c08a",
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    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
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  }
}