{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "227159204",
    "entityType": "User",
    "nonce": "0xe13e5fb6cb0917f8a01508446d19a8f431f1284329bdf0534a49fba65231f5b5",
    "signature": "0x4ba8ba00b0e85ff6670039cddb46f323143bb20ff9e5559ac78dd62b6b9a351a215ab5a3830a7a28e3e216769dadc2e391abdaeb80929c2b5654f5932aec13a11c",
    "signer": "0x54A7bEEa4225786D727D79eDe3df2AaB446aC63A",
    "userId": "757958666"
  }
}