{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103649",
    "entityType": "User",
    "nonce": "0xe3ce4ff50e6236a7b57d2501d887258d53724cb1bef70d321d2a4cb2a82fa4e4",
    "signature": "0x2fe09bc874193cd3e866c50678c548fa889bf14ea570bc6ccacc5f615ed77aaf2fd54c0e5abf44225c910fcfdcd642a67b93017dff1f2593fe8464309b90bf241c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}