{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa59d9a72deb11fdee11b74ad81c66a87406fdff8e4522f82bca69433dffb6f3e",
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    "signer": "0x09Bc9B35a18a7222aB9A0fb3211Eb36eb8dCf5b2",
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  }
}