{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2001065",
    "entityType": "User",
    "nonce": "0xddd3e67a6ac31eef893015e7685f5c288d2e5a0e65d99dd518909463fb5540c3",
    "signature": "0x1b2e4d86931c465dcf8152a05e60d6fb73d6ce30c629fb8cb2b1be3c2b74e81d55e841f10e0c31360ddb4d77a5695528a7bcd87a6af77b97ba95f62ed700f1a61c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}