{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323986046",
    "entityType": "User",
    "nonce": "0xeb43e1dc8c484432e55fb624e5032be51975d336549daf6f8b8f04b8e349367c",
    "signature": "0x69d4b8ce783e79316ae438b4edfb706758359fe7d01af4f8128914e802969f86799370e482b63c24f16a4a2c4581181d1f2afaf65dd6762921af8892def6f3521c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}