{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381478870",
    "entityType": "User",
    "nonce": "0xdbf271bb7956de9c6408b6e8b1417eb824447a1e5694b7a69adcbff2625b56a8",
    "signature": "0x6b334604634fa26eb5dd44d854e987ba2db45391687859308194ac61a7ecfde72f59a7439e18b1d7407a417a3728ed86c3b267640bae6ddc5cee6046b706e4e21b",
    "signer": "0xA2431a8293fD33C6289244D08A91489fF2C9f18A",
    "userId": "325308787"
  }
}