{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1885764",
    "entityType": "User",
    "nonce": "0x81eb5956ece94ec887f04fcd4b819f892b8954c3c63fbe922c6a921ac7590d83",
    "signature": "0x354cebb908bb4c56dc093dec97d1661c298b00954d44022cc7f28331dea384f9105229eaac7620a361e21e7969944bbd4f01667ec58f960efd814b351e63ecaa1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}