{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "72758",
    "entityType": "User",
    "nonce": "0xc13e2ecaf9ab144e9554099a1920fc32634fdda1aa65cec92a96235aff854391",
    "signature": "0xcf36ae76100f72916fa1359b107ce36c2688a0863d9a038ad1e95c15ff1f05ef528fbd5d07268f78065b52595f909aaf4c6c012e6f34dad9c578d3560c3c5a031c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}