{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107252",
    "entityType": "User",
    "nonce": "0x9780aa1b3d649eaba7b25a397bb9d1d2b94caec60cacfe1d8e7d0e296048078a",
    "signature": "0xa39bd8633b7dfab5ae30e66828b5c92bb21c8dfa129ad01e5f0a5dc47028484f6f284e42c45c580412811d6471134a5639b18b9a298cf0182cfdca3333db841e1b",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}