{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xb13ba7c17c2aca2c8c051d7d737f8d037a2da6b52336357c201893eeb176e9be",
    "signature": "0xa65ec64d72e44e0cc74e6e1ac48cc58a1b64351778f3e03f4d6df25af0e45946264c7e3d3c8e7f86af406c8d610f20cdd7208d6f894e057fe9b8b76f757b50dd1b",
    "signer": "0xC4e201BEaDD3933E76e562c99f9F367Ced3f68d7",
    "userId": "533673360"
  }
}