{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xf89e87f25fb17fa3826f5c1a03848917cdbbb39ac504a6c2e51cf210446cdcbe",
    "signature": "0x06e01d0c1907d395c33c55e4ae3fc05881bd8aec8c48e5c2627d22842f6717696d75867cabfd670ee47c2a3384022c4c6ce2d4b4da34fa76fbe1172bcab226601b",
    "signer": "0xC788A8E595e66f6dd40863AA97bFbC71c56108DF",
    "userId": "836056909"
  }
}