{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1994482",
    "entityType": "User",
    "nonce": "0x6e3f876576f23b7ed8457539306bfcda8b6ae3fc12686b3a06015eb8f6cc14c7",
    "signature": "0x49baeab4dbe9d94e4306914211f5b180b59ed192b040047ca03c4957ad4bf631261324c662cd53f6e7d25a8796674f1be92eef6aed5b115aab61efade2ed6c591c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}