{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "475275462",
    "entityType": "User",
    "nonce": "0xccfb0d28c6ea9737dffbe91224504228c94e403dbe6b172566fde7bff0e87ecf",
    "signature": "0xb3c567eb0eea5b447f55712c59514075fb3941ac1345e3bdea9f9ae0e780cffd228c3877135c202f6d04dd9dd479ad42b1449fce7d9e624c319c9c10b3eb43631b",
    "signer": "0x2B55314d733BC60522711F9B9914f271d97aDD6B",
    "userId": "224685891"
  }
}