{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3840",
    "entityType": "User",
    "nonce": "0xe46b24f37b222c874c5d6d910dde961b417f34bd3ebb137e44ff332771782504",
    "signature": "0xa77b93960295c55b3c560b98815acf4aa6a8cac671bcdb2705b543dbc4b2c9ec77e11be18d505e94694e792264670c0a1607a32d047ce8918a28179bdd16038e1b",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}