{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x709e1ece40c311d2ea6ae90d0805dabf4a4544f73f8563d6c8df5be3f3d0b041",
    "signature": "0xa67583dc3d61a8ad43de1b8efe051dd2f0a63104df13b88c6e59593143838db72946173544d99e5c8d9a438656f76a94d1de500ebdbf43c67da5c961d52a21cf1b",
    "signer": "0x80BaBdd7604de656E45b52EFA056548D7C078B36",
    "userId": "790313179"
  }
}