{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "942771296",
    "entityType": "User",
    "nonce": "0x303c04d79bbee682fa057788d9ce400803fedcf97a87f2a6adecf9d64b8f21f3",
    "signature": "0x574fca14fb895d3f69a3556fc75cb7d6153890038eb9ad3ace67183397d4f6dc5428adab17156c0a90d16220f15183ef40dbe9434c0b56e87ffcee854263b2bb1b",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}