{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68301",
    "entityType": "User",
    "nonce": "0xe37b6dd895bbafb028a45ea54eb14153717cd4153fd61c82c9d77e774df0770f",
    "signature": "0x99dca8d4af7323814d98f06ec90cf208be0b60e0ba9a3bc8547e4b85a937a375131c6ca7761961354bafa0803cbf453712bf4d8179b686778be266f80e93d7c91b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}