{
  "manageEntity": {
    "action": "Update",
    "entityId": "140080913",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5rylrjgoay75thaq4tk3i2aldjalgms26shs3s24vtgyytzmwqha\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2007166916},{\"type\":\"playlist\",\"playlist_id\":938357482},{\"type\":\"playlist\",\"playlist_id\":1237665279}]}}}",
    "nonce": "0xe114a8cd59e4c585e0df5248b742bde7cfb60d72a774fc79d8e2f6055d9ae10c",
    "signature": "0x1550e1b9f8de5a63de72b923d2c6d70a6f8a7b18be2acb3d966873bd16b50d893a91f2a18d9ac84c222ba1d841a3c91061adc4456b61d22cc9bd29641aaf56001c",
    "signer": "0x78f54B3C738fF217Ed30A29b99E2BbA824eB94B4",
    "userId": "140080913"
  }
}