{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb9695301d269ca1edb0b12de4a52f5df4faa868c32e4b476669669ea4141e699",
    "signature": "0x74a75b02559197332a3a251f2ebc88549855a613286c272795930900b4029893512e83ba33eeea6ecb386ae49a2dad02f7df3206d5fddcdda17ecf7faf3d666a1b",
    "signer": "0x345F527120644cd5f6AaFF3800A2aF4498dfe219",
    "userId": "519995777"
  }
}