{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "765901034",
    "entityType": "User",
    "nonce": "0xb4b3333bd4c8d4683cda2a1649b80f725ca6aab55bb6318670a7afc8ba4b4e76",
    "signature": "0x4311a2e96837e3a39b993058477b7b793bb5e94979e57315942dfc257fe015ad2245197c6f1cbcf7adfac724a2e2d2f1838c61152091b666658b2481cf6d47711c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}