{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134623867",
    "entityType": "User",
    "nonce": "0xe55caa26e52145dc5eb1bd5e201e32cdff38e0bed858829f6782262837a55eb1",
    "signature": "0x4baac300d4a5a77049b74a2f65ae8390efd55baa0baeb820d5d8e95b114830bf7ac930f3574ffab0219a5135b33ecbbbc7ad5cb5a7d81293028ad5d1832201b81c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}