{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "102143",
    "entityType": "User",
    "nonce": "0x87997da7e4e1e295379fcd251340323860fcd5147e725a8398d8f21c76cbe911",
    "signature": "0xefe8bf12a23f03a535f47a15154ca8bad046ac95c9144a43055a56a975a4fc3f53e73dd9ba80223426986670fa38546211fadb620aa2c084d03632776f6580b41b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}