{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x7bf257dc53433f4860c36b4bdbdae102a6b22c1242b6bb113926af6557216ebd",
    "signature": "0xa53033493a146d5c7d0eb411927ed4cb66b48f7d160ffff9560fbca516ed851a5810671f805b86b8b765c8f8e6b900ed88741a0f697da2c9738479ef27f7272a1b",
    "signer": "0x2230770EC85946F97685aDECD4b734f51662F050",
    "userId": "887741865"
  }
}