{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "498629674",
    "entityType": "User",
    "nonce": "0x361a7184dc9b08a9bde08f7fb25f798a445d79835974d8ea884de8d9a73ae949",
    "signature": "0x32159979b4c2b98032d7aa2c37c028a41739e7c8e82f3ffaf2f13df96183cb6b6da55901fc493b8a79d607288a18107334b94406d475eca70f7da1311117cf171b",
    "signer": "0x9FA029c6E43fD9781215e024e9ae5802602Ed2Db",
    "userId": "738673571"
  }
}