{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe93c56e8e46986d07ef3dd76a03695fc9d9410ac89d7345daa18b93a67ec090b",
    "signature": "0x5af912a494e01ceace5c2e661c1b1d1e68793311093a11447b5d2cd355fd2d845bce6edde36859b3b9b975fac9bb7e603dde6c1332ba4088bcfdce527cc9561c1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}