{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xee8f182326569cc525cf145d5c75e498c54d217a6b17e4494d4d33627cd2a617",
    "signature": "0x8ff5be4ca28331059edeb17e4dc02fa62d224d6bb6d49d3ab539ca797f4bc91774cbc897d17d255af0695f1ac3302754f706a2cd9ed8e3e661eb53bad965a5be1c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}