{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335904",
    "entityType": "User",
    "nonce": "0xbc0aa930e5e4787a98953c48439812b92aacdd69782573f467d6042e2959a743",
    "signature": "0x2bd3993a5ca29ba2e28b74ef41f338caafe7d19391c207c1f6f891023efa4c68211368adac5efea7f0888ce20bd451bb957a44a4e98d59b6533cd5ebbd32831d1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}