{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348740",
    "entityType": "User",
    "nonce": "0xd479fa17bf25685f5501216cc0b7637492969dc69f5dc6a79678167cec0543a0",
    "signature": "0xce5c4cd65f2d688542c408feb6bdf7ef6cdf95a21e41acd91cbd618cc8cb12a337d7fdf0bb5332ee107944ee7118d554e0cd53c2c1f8c36b1d0b5095890f93a81b",
    "signer": "0xcF7E6c02DA882ce2DA8a97BE0e9eE2c8c33C2675",
    "userId": "681323125"
  }
}