{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcd9daa1d0a510930be6113632cc2fdf828d6193864942ca7eace2d0a23113bc1",
    "signature": "0xf542bf1c4df3af3ff2abce1666211034e64c66120879fb5c1a99125036b011a93e53c9d0d2233554bf67403f1fa23aa4812a84cbbdd77696457f6362f566b90e1c",
    "signer": "0xbEf4D90F227E3dfCB9bD5f3f82a7A26B1D05b6f0",
    "userId": "468949245"
  }
}