{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xba17350e613d8e201f0d84d9e31656acb3a1de706e279ca7b08fc3983f556382",
    "signature": "0x57584b6afbc950a598f30c9f2d52f4388916462f7e27db1287a97fd93faf8b3447a7bee74ead34511a478b85bbad4bc5153c2825fecd4c4000cd2568cd6ba9dc1c",
    "signer": "0xE7743A7400A92290CfE93A3de48a3D4A33D9E97b",
    "userId": "802326336"
  }
}