{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117827",
    "entityType": "User",
    "nonce": "0xe45341bdd4876a81a2930b3234dbecbb735bc2dd17a8e790700427b4c1d31548",
    "signature": "0xe3c5bd35f11403d63326ff160dffebbb6d743552f0a5348975cb9ed4d1fbf02545e0f8408166ddb60df65dea1b5388b9fe0e3672f97d642b4d6cd5cd73ff7ed81c",
    "signer": "0xfe0812559692b402114f2E22b5680970591c3e39",
    "userId": "900235710"
  }
}