{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "849530",
    "entityType": "User",
    "nonce": "0x31981f3f0835b0db98c0ecfaa848a4c2d3df8268285033b6ceecfc4886ed3dcd",
    "signature": "0x5c7c79e51a2f5dbe9e70deb95f813a306dfadb48fb897783a628c98249b7620901e3439a8331b9795922b8a4045ddaf5b404d55ab838248e6131380fe190122c1c",
    "signer": "0x7C2169544c0568cB3b210f320356B6A77E891F30",
    "userId": "495616082"
  }
}