{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140918",
    "entityType": "User",
    "nonce": "0xd0358af63883ebc07e73e5c45b42ec1944fb74e2f52f4c5dd4c1bf3458321367",
    "signature": "0xed69427979c80ac878961cd5a686e3d0758bdb96841fbdcc1e6259ae3361999f3674547d903f1f2f19603814151f7c4e1433b8225a6b471cd797b489825919fa1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}