{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x9f1006a8d99be6b14e3b7c7e72c44744cffda7fc9d3e6605e06d139a33db18e0",
    "signature": "0x6fe62a793c16674270488f1ee4d11bdb587dc7ca538fd793cb1a628293c173cb748acce2ec9a93a690e9a6aeee0dfc55d1a45ce622f5867a4be117840bbca0e71c",
    "signer": "0xb0bc7585AC84F169814851A3C22d8d92D133337F",
    "userId": "267657235"
  }
}