{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0xe01656d8d9e0bbf29f90c626030ddd474e967ef573556881fadfb3dbcfc5bfef",
    "signature": "0x964ea73f19092078ad933e87634f08a9f95a04d25276374581e9fe1aaf5fe0d81e6027b5f88bd5102fd386b050a8495a580126ad06174cf54f9e6ccf98f0d2591c",
    "signer": "0x989b916868600DBE345598dA58094A4216f8103f",
    "userId": "347069473"
  }
}