{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xb6cfc407f96d4e353104db099d70c00e4f3056385a9012304b059f36c2808280",
    "signature": "0x8f115d137ec5341f483367e5a3878bc650c8176dcba7d5a5ca1e6f7bf1b45b666b270c3e14f09d0ac54d0349f39c03c6c837947909cbc0e6807bcbb79fb6b0a41c",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}