{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x4fbcf141947f039d3704df9470fa69f0a31f1da613f8e711b0318fac66615f6a",
    "signature": "0xa155803ef71faa3ab3c0274bee049d9794d8f6e2cfbcbc1d19c3b958f7f1791e38a64e55a3c8acf70fbdcbc33fd49d079829a2506102ecf55ab6fcfe0d06afcd1c",
    "signer": "0x08411E4c6D29293B936B93E5486b2675FA3a4c98",
    "userId": "237624336"
  }
}