{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "129374",
    "entityType": "User",
    "nonce": "0xa78f538e9b4851357167d10937e1165465188dc1bd673df6fa39fd18acdf36a9",
    "signature": "0xa91d2da5c2527cc7fadda78e505f957b9020796f14237120b4e084cb7584f3450c16c3e88782ad582fc5183aaae9f66280a52fc56f2a6ce8f78c6d04c590f3ed1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}