{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "988934176",
    "entityType": "User",
    "nonce": "0x813d05e44347d8e217611e864ad198e0db408795e16eb73bce0d323c213b337b",
    "signature": "0x7affb730a6f390e5fd7fa8f71b5cb669de1a08e27057c03e39fa3d365e5bf65517974d87a5315e52ee36966fa6a2bf0acd1daa04117afda1517c670cd5aa05d31c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}