{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0xc523976116add840e4d355fd4d73590c3f77e794510b7f48fd51e7fd7a9c62a8",
    "signature": "0x2ef477cfdee2b8d1c1d7074f9e507a8bd54f7a2182b5f3ccdccfdf4220e8aa1b506eed46a0984647379582621c54d5a9304b1ec8f1d15315959454c944476f0f1b",
    "signer": "0xC8a2D4De6500FfEb2FC29DF459E04c65307Ec114",
    "userId": "595622456"
  }
}