{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59868",
    "entityType": "User",
    "nonce": "0xfc32c37e86bc0c1d8bcfbfbba811af04eada453d7ba759b3601c055f1a473613",
    "signature": "0x50f4dd94e1957160eebbd4c45fd11a49af1b724c92b928862b582da905c1ea9e71e1723e8f2b2dfc6207043ab8dfc505def08b03fe1a7cbdeac8008e9a5d12f31c",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}