{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "582447217",
    "entityType": "User",
    "nonce": "0x6435439d92211185bfe1ec4387cca55b0e641783b6fd85469beba8b7dff9fa35",
    "signature": "0x64dc3fe8167c9e60a650c9b4919b79738262412f061c0a92684eea98cedc523a5196e5fcdb7446e8b5077bfff9578adeb292373ff187ef806818496d96f727571c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}