{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1881555",
    "entityType": "User",
    "nonce": "0x88f6e7c802702b297ec465fe8de25d3b5d23372ef29523356fe6aac16246455f",
    "signature": "0x07736816d56eaffa1592d755d0cc59f6802a0e5a819ca32e3c388bd502deecbf0e8f2f2d0477cd22eac89c4c5a194a47ac0b3fa79af54a50ea50f83a81f14cf11c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}