{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x53b31e76979ed81f5736276cf1a9db0056b90622cdd03f83a516f8de11d86ace",
    "signature": "0x46e55b446fcfda43204feda08cce31d1f98b93fae1ca66fba78e06a747ee43e52ae4308c5d1c6d3624978583a3833af5ed7f9fbff19e607f107d4711f6dc0cc61c",
    "signer": "0x8aC82278ECCcB07F5CD48853c1759c104aD8D7f7",
    "userId": "100670519"
  }
}