{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6b387233a90a23f772be4be26430745a6e6d7c344f56ee698450156d8459dbc2",
    "signature": "0x3a7b3be7e68ebd32f3a4814826016b8e123ae2eb43576ca10cc4507b6de0cbea5b169ec29f839c56d6620cf5c5a0891fd5e1eb08ed579a6feefe1001563037981c",
    "signer": "0x29EEda1E7eF2d7C7B5dE243F5b7de53F1E2d23Ff",
    "userId": "817425333"
  }
}