{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149566028",
    "entityType": "User",
    "nonce": "0x40cd4417ba98bd0611aeed2c0e567512780b022de27770e47db2079c1c0ebaf3",
    "signature": "0xa88a3bd565a43000d267985c433b8846e6ec7238db5d1180e3fca6014bd360c46a72077c1004cf89f8f883b03f77efe1cb2299a10dfe8f49de18ead0447524271c",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}