{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x07ee8ad035996e025f4090236d6251c271d97f522f0ffeebcfbbea57f483c082",
    "signature": "0x5751c0f11339bedf85b089617635b1143254ddea5b4adca25cad0fc17a8b11bd3408de5de113ffb3635feb1078539d70db7d7c8160e99295532d6b9969a7a0d21c",
    "signer": "0x9acF8CBE8f2B0d51e756C58D6d1f946A8757602F",
    "userId": "428941685"
  }
}