{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x6562dab5c45456d12ffa0fd658b24187edc1b41a36302d9d8cca67496e0e34d5",
    "signature": "0xd8ef76c191a9a94d8b43b410272844deca0d6920dcef350ff843ef748e54a9ff32587fb4fb3337f5ebbfcec022766d1d22877992752fd69a82b514e5468c4f731c",
    "signer": "0x3B72fa667D52755CcB53B3815f3be52AD038A577",
    "userId": "211024156"
  }
}