{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x51d2aa5644b783488e678f8fcfab4bcffd75bac3d0ae0f64ffa53030bf4c2d42",
    "signature": "0x070be16d9de9c6f8db0c96eee245299e43447d95da594ce07dae4f5d64f9228b4ac9f819cd57fde4326aae6e20bb88a1cb14abd5b1d87f8407c102e13f97c3031c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}