{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xcf659a5fbcf301105cc6cf3ea4b1a2eef93b5ab116771b2a5252bcc998c662f9",
    "signature": "0x18225a5d6009784d3050162460e32f67abc2da8c2cbc7e2d14dff38f343e971d2527f6adb8b1137efd82cfc9f0c2543a75dbf9ae32a7e54e5a8e33bac6f557341c",
    "signer": "0x4Aa8154A33F33394BA8De574d71aC98Ba6A47D5a",
    "userId": "645720561"
  }
}