{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0xe9560f1890663e0f8bd68b94cc35178f10dca8e079e25e8faee438915c373aae",
    "signature": "0x952a59de24a89346b6a370fb00ac2454c9402ac6f7514aba68d0bf8bc59a1a1302a9491c23e4ef23c8f8f0bdf717441fc7c509459dfdc07218b9fea1860fa7ec1b",
    "signer": "0x80BaBdd7604de656E45b52EFA056548D7C078B36",
    "userId": "790313179"
  }
}