{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x23d1adfd52e06a3ebbb9fbb3fa2eb13380ba21f3792ec7133a5d3467a6885ee2",
    "signature": "0xfff3c85be952aedeacdd2f5a1ba51adb100fcb8d9fd59b9adef14a4b72657bca4f5b815325bc35e8f2720627e872fca4aabebd047ad57ce1a668ace61fa8db9c1b",
    "signer": "0x63d394E88B78FF653F4FCeB0AC74Cf5b064dfC34",
    "userId": "633246973"
  }
}