{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105826",
    "entityType": "User",
    "nonce": "0x138b4940df9b70f49db96c626c9e6d413f43a6392c23c203a811610e76325201",
    "signature": "0x4ae0c665e28a1b02d15f7f69d59d9e0376a2638b0ebd101e3b3a2e9e3c8c2125437f64c8504e8b434094b5c4a86975437aa9e97f0f6adf8851104d109656345f1b",
    "signer": "0x75a075dd45bE38AA2c27754D97d5d84dD624FeA5",
    "userId": "451351"
  }
}