{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "582464754",
    "entityType": "User",
    "nonce": "0xf70ecb3f59f9689d7596252e3510cb64029c8a19613a6bb454ec587457ec6720",
    "signature": "0x09e75d205aaecbc717eca35af46067902bfcb23268ee6c9eb503ea90c917c4986327e015c60501c127e09e62fd6902642535a10ead693302e347445921590fdd1b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}