{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x169f999df6e99288cbf69c9eefdd5cb6377158200342b566a85cff6329a6b511",
    "signature": "0xb21245897c7a5c65ca2f39b540873b43ec55bc2dd47fe84acaaa450ff4a7eda6506d1b39670ac1655a121a466cab26a69cee5092dbf9d5ebe64db5212b2dbe091c",
    "signer": "0x4ec0618BF74aDf72181673DDa518f0bf7781DE7E",
    "userId": "703354792"
  }
}