{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "168164",
    "entityType": "User",
    "nonce": "0x75f75dd27265c25d754dcb51ee644e417c2ac48f0ee5edc86d589cd0752594cd",
    "signature": "0xcf742376517c8ac9cc1505e2cc2f72611610414238dfb263b2f9277f06baf4a312f5d854a54fc413ebdc5868b8b5cffe2a55633d017453bf7e5d034927d074a21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}