{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120328011",
    "entityType": "User",
    "nonce": "0x5f1f7ef59e93af5fd7631b9ba12d0cec351715704cb6e2c05642fd4c43b8a9e5",
    "signature": "0xcd66e14bab6edc5df9f85ee9400a4f594be79bff1fc0bf0886b4fec0a1cf6fe12103725fa289801833ed3e4a0756e61a08f3c792c901e5acdde7a2024cbf2ee41c",
    "signer": "0x2B55314d733BC60522711F9B9914f271d97aDD6B",
    "userId": "224685891"
  }
}