{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xa9f395e499514cbf089598013706c12ded3b8ed0c7f32fc6eb880291e018c311",
    "signature": "0x3115d500b49d1bf9c384777f72de9c276f453c48103492f5f2cda07ca211a72400d3292c9a49a3d8ef57048fc02a0d56710ced9f10dd1e1cd122baa0007210741c",
    "signer": "0x1f93892aDD3214CdE0F43a53233Ef3621968b772",
    "userId": "661472699"
  }
}