{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb5990a1136e5b16c6c912e0f31a32c6ff54884cc2c83509b5f0642776ddff6cc",
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    "signer": "0x6B98AFB1a37cb193f35F9c11B69d545f36c75b80",
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  }
}