{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x94df09d886043ef2d13b0c6d9e26a92ec2dc4f09d9cec5f458bdc8c677db852b",
    "signature": "0x621fc984a642591937d86b788de53724f36cb2f1b50827900b0e23a4ed65729e72693a9d65a9003f950f15237187a14773ce42ec6f333468499c3f0e2f066d5a1c",
    "signer": "0x538B53545E1fb97bC3766E4851D655E9Dd5B6101",
    "userId": "114736985"
  }
}