{
  "manageEntity": {
    "action": "Update",
    "entityId": "635110117",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2157ccf68c8cfa2e2c7f8cb37cd7ae8ace43a86ec2541da792a605da9e1e1e23",
    "signature": "0xbee89b143dc0f5f72f9ced2847e6e0b34fd1bac132c25fca9cc0e516c0cfa6c76249e5bcf5a7e0354019a7bb540c8846e0c4371412fe3b753c2ec119c70499651b",
    "signer": "0x6f40eFAab3aD8EFfE499C82F1D060e8784231ECC",
    "userId": "635110117"
  }
}