{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74667",
    "entityType": "User",
    "nonce": "0x094fb5965b027494679f7878ab4b5f74485035260a78e787bfc22ea03740c983",
    "signature": "0x7972271b492b63b5a958543b525ea14f85ca474854eac7924ba1892afbe70dce2423c7187c69e5a231bd734273783bea4b118c25728f311e5c069f0dd9fb78111c",
    "signer": "0x16BE3cc7Ee03C75AD10a94fb7234B045D351825c",
    "userId": "66529124"
  }
}