{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67242552",
    "entityType": "User",
    "nonce": "0x555fad66b40ef017cefc8985369a9ea91fba847ad73aaf66cf46f8935295f721",
    "signature": "0x0f1aaa82f5c32c19b049c25af4c7e5e84a19d3837449473a7b55869800debe880c0204626af91cbd380b89fdf516969427dd2e3346741a4f610b253d55db230c1c",
    "signer": "0x21370B7a703524cC2941323C2c960224021F8D56",
    "userId": "986168993"
  }
}