{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x8fe4f4d2e4c70de0b0ef78609a2e391ce90690c38f7ca176220e0d42258b9ea0",
    "signature": "0xebad884b6a90ff5e233c2c7ef0dc74fdad5dbefb2f9089634ce949e77eff65c76e1f866b481f81ab1c71a637b6d89ae79f51ae0db25b9bfe8bf36129ce2b85441b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}