{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "304048",
    "entityType": "User",
    "nonce": "0x1e75739c8e3700222316a9f684eddbb6e1205bade814adb5c3be8c8665088497",
    "signature": "0x8da113ddab689184bf7ff14a283c60d2731c05ced69cd8b5a9b0463b2549f89c0ea28cf4816472bd8744974b39f88b80a7eda9998145dcc32d58dc97afd092201b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}