{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138623",
    "entityType": "User",
    "nonce": "0x82192ad1bd55f7421eeb7ff658adfd2eebeca368d7688987a0d8834caeee5b38",
    "signature": "0x7e8a84c95b16339a4060077e99c3e60817b6d0c3b888a963898ca6fe5ae45cda5944b7f2d97dc67bae911076af22ef98232a53fd517572a5cafd74148ffc53fc1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}