{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "657952965",
    "entityType": "User",
    "nonce": "0xb747397e5eaf2b30c66a2c837dd35d8ff0be6e8e82c0cfa9e7fb5cdd44f714ce",
    "signature": "0xbd83f992bc6eae4fe34c1429b45e334b0a7668b22a047d551faf40384042249758ea82d5d8d1bf8a1d451c85c22085f7887e7ff9e51fb2c689bfaf1d02298b6f1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}