{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x33217b1b314e3820bc4a9acd4af2782ef1443ecf959e3b901fbc2c324a40aeb4",
    "signature": "0xf2496491a2261a04ffbe45a0547c5dd1dbb2a3d2541da593ca1094732025f58f75857e7ebc17623780a3607ede63cfebff131b584d165b977157d21294245f4b1b",
    "signer": "0x80BaBdd7604de656E45b52EFA056548D7C078B36",
    "userId": "790313179"
  }
}