{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240783916",
    "entityType": "User",
    "nonce": "0xefa494558a848d46946672776d3df73c05259950584900eb0f1d392616410fb7",
    "signature": "0x5089e74f5886ee6e30fb9d9a8760bc7ef649c52642af3c57d3413b08092f886e5dd48c70e6682d98f1a6b6c6a0d487a9395d760dc1c591930dd02d9000c1f6151c",
    "signer": "0x39788E2D020D54760872178Cea0d5AF12732F02D",
    "userId": "720903941"
  }
}