{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828772640",
    "entityType": "User",
    "nonce": "0xed0dd158acda750547ae8ec20f4255f572dc092f3070f97a246cd8fca1ef813a",
    "signature": "0xad3d0758af60c0e337b9cdf4a4ecdf16d160c5964b42dbcc582e9c504768430a1016863be9275c9ee3f3e53de463237f95558d0ea5fea903f4c841293e029ba11c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}