{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345297120",
    "entityType": "User",
    "nonce": "0xdeec4487c3a3462cfa1d47969120186bbd584116810537a55b65579ca1e02489",
    "signature": "0x4b7e0e7c1160c8047f3e6bb699880cb04df2b4b56553ac6f0ca1e1ad3e933119080326e107a667a3046475dcbe97f29f6a3b4fdc333dad30ecff4a98a4fbf4d71c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}