{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916957563",
    "entityType": "User",
    "nonce": "0xab6233dc6f8856b37ef877d0ac266114443406ec6729653a222bd61c21b35bb4",
    "signature": "0xa0df40eefc603212f6db25c0b9dd351f4ebfa661eff7393051aa4d2480a774d34e7ebb89751d5b8472f6c5b73d4fb6416630e21242d852b7be7d8097e84e50931c",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}