{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42833",
    "entityType": "User",
    "nonce": "0x42778eb787aa91072a55ac9d854d61beb2287bfc9ebd556b6e69d1da0be33f5a",
    "signature": "0x0c92a8e5165bfaf5a3278832a4ca047710ad238dffe500ccc01b0bfe55a7775f2b8cfad168372521fd97d42634e077f9c696b9e36ac202b7e89112741b8aa41c1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}