{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x470885bf27e8e65782b8f400d1a7cffa2e513a391a49db6edfa943ea7ad0c656",
    "signature": "0x3ce8e93f4a0f4032b3476ff849a9760d5c96e55ac25e8a8eb66d13ea195714ad440fe80bce320f427139cacdd306b131efa0d2b30f2c8fae19a87f82f61e48341c",
    "signer": "0xf4e39f23021D832A7D8e37A3e280Bb0E5bC75bFC",
    "userId": "406892069"
  }
}