{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "76019",
    "entityType": "User",
    "nonce": "0x99a4646abdb91eb14e50099d4e1c6526fb7c1094c0b164f52a16e94ffc10a273",
    "signature": "0xa3a8b8a0860651d6ae55c211530debe4ae207e6a0f57e403c418ac602d3e4c973fbe8f902ff522bb6ca98e95718284d90751c9bfdb85a75dfcc0a63d8c61d04d1b",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}