{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38841",
    "entityType": "User",
    "nonce": "0x5171932333609f10399f6e9090b600c45f94710dec97daebca597c4c9f95fb3a",
    "signature": "0x32a47c37fbd772c7d1467e73bc7490acfb9759345f4d69df63cdbc310c98e06260cea2b3fe97a451a640463d01e637ecbb8edc91b0fdba2c521c4d174411b7e91b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}