{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "119478",
    "entityType": "User",
    "nonce": "0x34de70b247a9fd48138961b48c42f68e6aad1d4897b34f81475975499dde0e4e",
    "signature": "0x254d07279dfe690b2e656a38ef6a99e400a498b04f382ee804b6e581602571d326519bfa61427f36fd49d1024930c052ac322dbfef8350366fbe37c60cf4323f1c",
    "signer": "0x4950A7c498b6c214e83B79502162b7f248f9e6ed",
    "userId": "499895630"
  }
}