{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0x2718978c88345ea7b5959705defacc12387ae41e572a1823a0a45d46b6bfbb0e",
    "signature": "0x6634305ef2738a5bb9d2c18aaae6844232dd0559f4284ef622a1a9f22fe3863c0aad17264d4f964690406e407a70df9224c2e125c7d0303bea7a27be070d420f1c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}