{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "209405413",
    "entityType": "User",
    "nonce": "0x9f2106b39fa56c737e6f8467862d71fd798f6ce41f6d06b781cc448f0f115891",
    "signature": "0x74cebe8c63f889461793f14632adccf200761fa39b8071f6649b1dce44cc27ca78fb0a785c4f895ffa781c3ef5161e73dd781d627630630839c0f015cf8202341c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}