{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326897",
    "entityType": "User",
    "nonce": "0xe9c3370410ca76ecde9f50a098ed3dc58bff05f73b871d5a80c93066c4956703",
    "signature": "0x70332905447eda9cf23db437e1cc1df9c3ae237266e58c77ce6e10652b29ec1c422ac4735aee1f1aac687c96bf0c6b99f39142c09af2743f11edf96dfb9b4b561b",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}