{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117827",
    "entityType": "User",
    "nonce": "0x4c8f619a9857347967b986d6feb600b10313bef311eff51dde3c6c591bf0c9c9",
    "signature": "0x3343b88509388e27a9f65438847c4e65a53936811e0f85735eecde170c84f56d650063da619f298b6936d12598e83db00a1e9a43165caef34cb375c28b759bed1c",
    "signer": "0xfffF643204D053ae5bFC296Aa20F15313084C719",
    "userId": "473911971"
  }
}