{
  "manageEntity": {
    "action": "Update",
    "entityId": "937591339",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajl7m2iewhqangueap2i65aduj6nwues5qlgwbded4chkjcc3aqba\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1312763542},{\"type\":\"playlist\",\"playlist_id\":1552757967},{\"type\":\"playlist\",\"playlist_id\":1944069140}]}}}",
    "nonce": "0x4225be7d5cae1f292f5f3ef25e8cdb9b289d90ef43f5d11315a39a5001b3b3a6",
    "signature": "0xd65d1e5d1428b7973100e21d7645598e3b04fd84daa278abcfd5224cd430c6d7407df3dcc57efa5f625f41a85ff0f58750bb39be4a01054aaf616f00eb2124191b",
    "signer": "0x2B4524c69fAB42E4e548F5A7C30aF28b1433794D",
    "userId": "937591339"
  }
}