{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394450",
    "entityType": "User",
    "nonce": "0xe40f9e8486ce797407e2b72846b86a379512048bbd527bb6d69d253c39c2c995",
    "signature": "0x0b2d4399f2f447d7a27043120d7196b2200d50ddaf401310d1d94de4b741e3d07eb5350a709e4dc66ab1bf06d9e2b792e3cd6df26074e67f6651dca415bc834c1c",
    "signer": "0x3D472a01Cb831ac594835ac6038A4346E2A22B94",
    "userId": "327343"
  }
}