{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x60e12985bdbade7b97d6e535cd0b371021fc62383447f30aba9db01b7a2edbb6",
    "signature": "0xd318c4b16b9f8e8228416903d7bb4d2a44d7077c6a21c72d19268715a71076f109f1dc346194ac3f29ea77fd15e28ee00084c605145d6472364753c329310c831b",
    "signer": "0x68aCA0Bed19134B3bC69EaAEdDDE24Ce0377fa39",
    "userId": "966922800"
  }
}