{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14431",
    "entityType": "User",
    "nonce": "0xa290016580d942eaf5f13724c577af8561f2f79acb7ec8df5250ad687becef4b",
    "signature": "0x4c79a286e72ebc83cd330f93246c2de5f752bfd043f7f5d3d70bd60b387d186b05a6c2c132810ade7ae7d8fbba4bae2e15e2e38521c7dd5b668eacf7e1a3b4451c",
    "signer": "0x9d2ec6a46a9c5b10e9f194E0d8365Fb4cD986916",
    "userId": "29050"
  }
}