{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x96151dfc7cab38755a0facecbd961971ee89d12ecac29a633cfb9cc4b208db8e",
    "signature": "0x9db2603189e867c8fd7e53b4db692e013d8fd2635cbfe1f92910c7ff4caeef006e33984e617da955f13f6efb2aaf04e362421b7c2f64c1e874dda5c7a06967cd1c",
    "signer": "0x918eC7857CA040D55395d7dd88187D785daFe6c8",
    "userId": "777079496"
  }
}