{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37912",
    "entityType": "User",
    "nonce": "0x498eb737381bc8520a171f0a87fb4ff085344e16ca168f0dc893927146b54222",
    "signature": "0xb7673e6b8d03d24c4bab4a9895234ea589daf35adef165f7b75c4859481d41cc62636bdba673d290abc39f30d145cdc79dc8ba0e48102a69844620f735d214c61c",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}