{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "978785085",
    "entityType": "User",
    "nonce": "0x904616a7b115c8344051b1707e188089ff96d75fd853c2a32b8a7807555edd81",
    "signature": "0xe6ab8c4f309c967e87e11e8a9946aa1ee16c50e701482809df7c7c885ee4c34b0145c1520a64c3e13c8bd74730cfddb23ceb2ceeb4e1c31bd7a426cba1b97f6c1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}