{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x3e09e386f8f1529f202f9e4e76b8b07dacbd06355f15e92b78fb479b1bd34424",
    "signature": "0x55cbe2e65ecdd7d75bdfad5fc8a2e573c375531b07cb007d1cd8a105ffe9bfc539e4af1441f15943f7b599d1f965a46be53ac6a4e49332db29dff434561bebdc1b",
    "signer": "0x0E1419Aff1544Dde5c4eebbCfA208Df83ACdE40A",
    "userId": "564626302"
  }
}