{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81238213",
    "entityType": "User",
    "nonce": "0x62756b6ad84f6775789eb602bf38d429942b5d1acd70937950aa7c192d1198a5",
    "signature": "0x9769a285c7f7e23d77ecf339e945e4f703cb33901c8b02adaee6586b4a3da4951dfc5c4165aa6b6eba37494739aecee744f5de6989de146d9d285d95b564b11c1b",
    "signer": "0xA2431a8293fD33C6289244D08A91489fF2C9f18A",
    "userId": "325308787"
  }
}