{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xe75cdbd84733e7724b84468405b62ed70a87050afb3990be7084f4842db0acfa",
    "signature": "0xfcfe5e6eebe5811f58b23598a771a164a47cc264c13f61ba5b321f470d5c616f081e35c975756833b54c29d0b930eac459087a0ecec2e2c55e2f27e0fc17c83c1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}