{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc2ac9daae6b47fad4c30fd1a909111858a3e59ee736768e4cfc155b8d37fe6bd",
    "signature": "0xc35183a899416033d8111c5cc2a23f30f096495c00e2d5fed41830181263751237e076afd4899a9685e8d533ef2ac46b913fe8acf1474077eec802d51aa29fb21b",
    "signer": "0x44Fe9338D9d1405927C73FDA0be0F36ae481Cd39",
    "userId": "983568397"
  }
}