{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201",
    "entityType": "User",
    "nonce": "0xb599572111d026c2817ff74d86d82671f2330b38a06d78915ff71200ec4132b2",
    "signature": "0xdd6b39c9598f2556b1828031c75a2fd884e0d475577a3f4fb82e4cdff481f929759099252061636a6a40b48a4a7b213428a3d1144b24989ceb49b031d0c54d591c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}