{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322981683",
    "entityType": "User",
    "nonce": "0x2541ceb2357c7ef9f37df66c0af50754f9f9ca4863d3bbc52e67bab000e43567",
    "signature": "0x277f2b1877855da451b53f29e8562440508f55ecbe5c4c95d73b8c34be798435358946eba4ef57abe064710fd1257ea20b737d010a805103487c17ceeace3ce01c",
    "signer": "0xE726D55D6940a70995Ce9D8aa1aCE76FC6f4f544",
    "userId": "285113781"
  }
}