{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc2b534c84d1427126def4bbc464d7e5d8514f5d3a3365b2dadfb0229c526fd7e",
    "signature": "0x228c356cf0267618868b13d6ac556ae8f9b264569535cd7c28dddf301d99c7992c529f20afce3fe675a23021048fd9be14cdbe360f1e4069809323dd590ed64e1b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}