{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xcae4370b007e23c828f0702d646b46e69f5b6d62adeba51350dfd76508716e66",
    "signature": "0x82e795c25e50b88796e277baf9c07e1c36c7cc857168783c92074df87ea06d2a6c6090f76ad307108875e1d0d92818c15bb583ec84497cd054c34d198774eccf1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}