{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234141",
    "entityType": "User",
    "nonce": "0x507faa1ac54a1048bfb6e24d8a53b2711ef57762fe3569de12297ac4146e3017",
    "signature": "0x6e76f23aa5484aa6f3d743ccc1d6d59b386f083514a10be064ef5c0d207247ea41e73e742a3c94eca779310e6828e5f6dc9d98a77feb1188a0fc68c1d2f778fb1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}