{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1088310",
    "entityType": "User",
    "nonce": "0x884ff31cac7f856b6db06d3fb6b0ed103b1bad08c533430943545a58c4458b98",
    "signature": "0x6397dfb3b6d28f16662b031b0c6a6ec2f6e5c8d92945726449af382172c4880379e980238db4ff155d4f44963cf93355efadce2e74f269e3f6996409cf9c58171b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}