{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10979468",
    "entityType": "User",
    "nonce": "0x49baeb6d73227ad89888a3ec9291a4a6d45d8e3e3589160561e0ff623274d629",
    "signature": "0x90a4c3469b71f6c8d9a963aa7c3e894f0df766044128ab90357dbfa2bcdf3cca21499c349f853daf4048a3ec6993437413ee6862772e386b53e59769560e57361c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}