{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x562eb9c9b94d5b93b3789bc8d3214985b72ecd9d214078af307b22ceb097a175",
    "signature": "0x6b786f2cb15217e592bc651067e1bda018c05754dc3316648e076ac52e41002b2bb92d76612b609b1f67157edc3adb5d2a9e0b4f3c26008cfa9bc8fda195b9451c",
    "signer": "0x07980546869571afE8dE8E6c91F0Ef62A10FAC51",
    "userId": "159806427"
  }
}