{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x3e9b67bb754189a174893cc7635c50894bf042ea58df42471d0aee6d71dd8b78",
    "signature": "0xb6bb659e6599148e1e97bfb759621bb23bb5f75f35092d1547d46cba4346cd2d1e7c5e64dc4109f327477909975a8eeb46edfc938674fc4280bd0a07525248b61c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}