{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183245",
    "entityType": "User",
    "nonce": "0x2fa3039a5625746f0733097f570ff7e43a3c6050116cc09f6021ac4a0036d538",
    "signature": "0xb685a7c65afea39799a6194651ceff03c6e861fd8181fe355b1ba944ddc736c527a9090a3261898a9d1df5b70ec03b177b78f897d410465a4dc578fa1aa505e21b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}