{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "220441",
    "entityType": "User",
    "nonce": "0xb967cc73b5bb48c98169e76fa8e43b9ad0196e614184286fe753df1267cad757",
    "signature": "0x2a71476a7df2a0a808daa59e6da1115bd65e6a1aa930088df625dedcf9d1e79c232eff02c104a6a7f514f5148b7ab170b5c0eb8ce46e2ba4e5f2dc3589b60a5d1c",
    "signer": "0xA5594f75935B53086a8f3231b314C131605FEDA6",
    "userId": "140185425"
  }
}