{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1687304",
    "entityType": "User",
    "nonce": "0xb78fe87e646a7a8b2733077010ddaddccc7f57f2892cf3e9b69fea35ec45e83e",
    "signature": "0x062735142dab93167abafb3518e0589dc58bca044f25d8685ab475113bd593621e038189f7286e9b03852f8f5485b966bbee4560b8bfab1a9c824dc61499be651b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}