{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xaa4e3140d1f90b6c0c1c3f5da1d060b1e5e4e1bddff16d98f818b9bf50ddaca2",
    "signature": "0xfb686b0cbd5b74588ecb08a68e18eda7a34c33ebb2e67c78b9569dcc510906b9379f7f4195cdcacab58af5285c0a5efb548727a0ccc29c35a08e39cf046563fa1c",
    "signer": "0x5Af531A9cDF9747df40f57531227d70F1bdD2ed7",
    "userId": "511108744"
  }
}