{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50106",
    "entityType": "User",
    "nonce": "0x9d91033e3e9c7a721da726333d4dc2c9c7d37eec27376e28870f5db2925ae691",
    "signature": "0x577e50e71ccb5dcef803b901f16cd153062781c1ffb47b27831e354c54718ffa74b79ac35732e58dd391df0f0d8906bbcfda5b7cbc829c68fafd606359cacf641b",
    "signer": "0x21e530f5EA8E24d2476C3Ff8253D151693719385",
    "userId": "854449345"
  }
}