{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x68ef224ebf7b91ab436691ce681be0bc1dcc74408bab8fb5efe0d2887ea52c93",
    "signature": "0x9145dcc369c70b36235802bae4c6952ab490215d01a8d77b4df53da28ae51824049414a67eb286ba6192e114c8eecd18421f3d467945a3a878b191b02ca40c751c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}