{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871579076",
    "entityType": "User",
    "nonce": "0xc1ca8d46ff0baf9e5643634525ba63125e24cc1b6aa5dbb0a1613950ebfb1137",
    "signature": "0xccdbd137f03835c2f45a794a19328ab664e1e0613b101536db72088c0f3e1906766c8fb849475202c663296c20ff8a1ee1e1e17ba05578448505385f8d6e02d91c",
    "signer": "0x7C2169544c0568cB3b210f320356B6A77E891F30",
    "userId": "495616082"
  }
}