{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12432",
    "entityType": "User",
    "nonce": "0x46c0e805bfb4d25e229ebe86c456dfda427f18c156969e31baf7546bf52e96b3",
    "signature": "0x30d9b3f9a11d850a7392a8b40dbb4e2dbbcd11f7624a85c50a21095557d844382580f747afb22aa25dafcb10e737b3c9b849767ab5ccce40b48110851248946c1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}