{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18394",
    "entityType": "User",
    "nonce": "0xbf4bcde7ed52779f9a525e94c176b767609a4148825d79c803b24727c8a31414",
    "signature": "0x65f42a5523fdee714cd89e555622d88b8536a517079dbc6e41b35c5439ae7033590e5caf6f666e27c4eb681696779800b7315c756670703e1db784b7081e69dd1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}