{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd7005c3a2c75eb676fc96b09c2294267bda4eede8a6be1f7234a8cc48bd5b412",
    "signature": "0xf9c4f5203d05b0c694ae409e3e94747ffb3f7e68daa5c429da765513bf0f45712ee9dae352db8ccd1d631e886d4c372c63f5e421f51cce99ecab432970c52c7a1b",
    "signer": "0xe6896f375EfDD7aE22ea0E0958a36f1Ac1861a95",
    "userId": "43686465"
  }
}