{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf913ead6cb306d110eea63d6f39ba4b6d5b24057b683c31a379da25311c35457",
    "signature": "0xe6c7658b8f10a6461b10c76170b34a98ca05e2f50fc4e103244f1068fe15f9f86e7002b5d5c5e8653c3aad478f53b92b4098809d36928facba44fa8f008ebfb31b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}