{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "188010",
    "entityType": "User",
    "nonce": "0xe65e523b5538eb61d8ba40e5fa7b164edde05bdc318806266ec8443e9bd46b85",
    "signature": "0xa52798decc59f1e4723c16ff6522a69f46a86735c866c8a5febb6f4dc1ac84aa39909807e8b7a6f2ec98c11f6878062b1e7394a129b4f6c270db813d576d81931c",
    "signer": "0x5E1b23614a9da638dba09e8aB2E9B76ed81c688f",
    "userId": "306948669"
  }
}