{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "581802105",
    "entityType": "User",
    "nonce": "0xdc08d1e099876ee22cfa811a259810102392996a1da652d7e03f87469c5a53f1",
    "signature": "0xb59cb880d251461fd83f0db841d53a612b5c2756732d371d27f71ddf109b6ad241f4cc0669a18befe3fe87beb9f5ffd3c7ca705ffb1d53bca971ac341c8f69901b",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}