{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8a6427e5aeeedffdc239991256bccdc8a9bf5848709f1a1f6c5b71a299cf6b37",
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    "signer": "0xF7f46C0A973d4914A8c677D98505d1F80aeECE65",
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  }
}