{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x77340d65ac2e84bf04f6488e6e09e28fe2c83373640df2e382973167e9cf37e9",
    "signature": "0x0d6785684fc54522ac8d50c6895a91893b106be188bd203c5f79cd04516644791c6b95410ee7552e1e34119d35d568e6ee99f5e9a8c81ba9f84d71e4e72685d41b",
    "signer": "0x4B140b61EB41438Cda0Dd10473ad1334309C1b97",
    "userId": "45511108"
  }
}