{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0xabb1c3ad83601f389d5b6735e406261a3b74f2ab0a90f58828ec54abd769342c",
    "signature": "0x0e84010bafc0ae0f5a3157287b0249b5008324b69755f0c7c06b361750703588099aa52fa9fcf6d366096c8214e4bd679c2aee17e77583db3bb881183b563d751b",
    "signer": "0x607D26fCBC981BBf1f9b7a1ee2EB8444b128239C",
    "userId": "68884680"
  }
}