{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0xf7cdc4ef004d2da45a2f0c2fa5fcb9bad8bbd8b3e9b60b349309b7aa2bd687dd",
    "signature": "0x93237758b3382224096e0d8575c52d5bc84c44b758ffd3ad24943aec0ffc5ed1246219de3ac093651322da632be7de7033c05740f7d512afee29b2cccb7603151c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}