{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134619804",
    "entityType": "User",
    "nonce": "0x5a7edea986b89e48049f549fe7a2a01fa10ce37585ebb39d3b7db579c2747ffd",
    "signature": "0xca12334fe2a1a83382b06442e39e528800bd3459de34716e11f9e9b3081a52a93c1eda8c9f827df44c9cdd71a93cd2c868420f60924afd84959036849739ab9c1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}