{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xb3fe6d765ccbe9856c9e188961ec7fc492b64e1830c7c95cf2e9cdeb13634346",
    "signature": "0xe9a6415546c99055a016ff1b138da61e5ac31a32dfe2f07a0645337b99d2d7f02ac81d18c9f7cd631dd9c533b2dda637a210838c7a4ae8f8f2e9fb1b939037d21b",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}