{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223616",
    "entityType": "User",
    "nonce": "0x60a729d21b4529a8a69a245e9310721559f45cdd11cad20d900b5a217a936619",
    "signature": "0xf8b76c4fc14f1c1ac60977cacc121b7e8cd71666c6f62148ed71340f091dc50d44cbfa911734ddb906f1c954dc51824a3903ae5b9a94a0fdd7f039be42bbcb141b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}