{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "133953",
    "entityType": "User",
    "nonce": "0x3881388f7f953e63e8cef26972dfce6b7d32dede21e344d24c9bb209e9e3cea1",
    "signature": "0x55189d0f62f11586140f8293eec25df44e3991bbd8d646d2939a5c009d6eb2f768629bb8a41081476c6f7959dc22d531429ab5415e0bc966778fa02fafbb7c1f1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}