{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "694752224",
    "entityType": "User",
    "nonce": "0xdd16d94089227ddd28d9e9df927edc07e42264528b082380933e05f79be35b2a",
    "signature": "0xf40378630c775ff2dd908026b5e3f6583435a06bff40f9175743ebb610a5f261349d91516f3b9387bea40aa42ef367c6dc41e636b9c77debe957cd9545106a121b",
    "signer": "0xfb10f4049c6f3AD197aC1e2367766B3cC9f74651",
    "userId": "532349201"
  }
}