{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5337a8bba728f0bb2c20252ad4c47cb15480636a2e94c96b45b06c821e9015b9",
    "signature": "0xb3ab3deeec26c2365854907527b5e43af259849b968dfba50792945f7952b9405c210e0fe7dcf4ebf25fab5c9aa7973657be8b5b7e122158ce9be261d64ade8a1c",
    "signer": "0x6558B0a655B37203A5C13A10b6bd3BFd6cb44b3d",
    "userId": "930754443"
  }
}