{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83745",
    "entityType": "User",
    "nonce": "0x97d200af09d3d372f93a7ecf173dc79ffd7fccd1f2cea6b43f1c0f72a2c18762",
    "signature": "0x3c744fe70ddd97cecef0fa7ff1ef8db327b4cf126c058db84fd51e04be589593548de04d55700aa1627a5003ee86c67219ca2d8fd78ec19f4f82b01e589b257a1c",
    "signer": "0x3C7E367F0E6D1E6DD6De3c81817aE8C5fDf30607",
    "userId": "819845121"
  }
}