{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "678556080",
    "entityType": "User",
    "nonce": "0x425ef2867c0d21b5f54baa272eef8a50e47799e44d0a578e22c5b7c9f2441d21",
    "signature": "0x99db79bebbb04099327a53eca33dcc6861e0ef0b4130850930529a18fafa979d06200575b10901b4b5df38da69e5f623ae0b6e378ecc367e622dd2948cdac0881b",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}