{
  "manageEntity": {
    "action": "Update",
    "entityId": "814929010",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieratqawasyqy7zx3gc4zxfqvq7gvsyqjrkk7twfw4lmqs7amqpcbnrq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1157820743}]}}}",
    "nonce": "0x88b8ecf92ff360a6d0d649c51ac251bce4641453a7df5de9eb9e4b9fe49a6a06",
    "signature": "0xcd420d8890a9a2c7c05db82fbfcbb3bbb199d8a5e586562ed6a8082ee05790a673f27208a3dd61e4bc9502f7f9ee40abee9ac5d19778ef948a38462eca750bc81b",
    "signer": "0xEf3d3c6df875c67aa35e9F473e01a47D659c95f9",
    "userId": "814929010"
  }
}