{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x23a580118f816ffb8e218b4113014723c4edf74cd2fed16098106eee4018cb5d",
    "signature": "0xe4e4fec8d6d0b8561ddc625bd07168285aef20571da92857ae130f722db6a79528b41966530be5e28702d3f0f5675b38a694c9634a7bc79b0e554767aded43921b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}