{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8c7e2e0623d63db3ffbb972ef6f37947a2a71196f14ee2745732c9c5f48351e3",
    "signature": "0x592bb4f9f50c92f523895a8cf13df7be6089a9942097a4010175bad86e2493d82f6cf2156c6e0cad0e54b5cbd17d73b01a7b693cda48fbf733570337b90572df1c",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}