{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "401768119",
    "entityType": "User",
    "nonce": "0x01d7d201b381009ac22f132b329bf7179ccd044791e14512e8e352c1260aa8e1",
    "signature": "0x4be06de0aeb38406dfc831ece68e88dc18e34f642b0960cc666c8b25dbe8d37e7c471fd228991c735cc606e1dea51f8a7eeec9d760ddb6def4a797e4e6792d291c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}