{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200883",
    "entityType": "User",
    "nonce": "0x074d9e6621ca57bffcb72ae54e796347d12fbe164bc914331397fce2956d6ddc",
    "signature": "0xaa0a5deb226349c615137893d5cfb59db468b1772c70827ba8562c8501cd9366140a62227e39033c224971339ed634fe3a4304f25ea6a64224b572eae93e1b971b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}