{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954117045",
    "entityType": "User",
    "nonce": "0xb925fd79b8f7be089b800a700c9d740c4a61749e5ddd18356c0b4db78ed3558e",
    "signature": "0x6a3cb5705cd639b18c449395c710662453eeb8f31cc43f26b53f01c195f7374b46ff424d7873bfbc0e006c7382bd861ed974fd3684096db3abfe28360df0f8a81c",
    "signer": "0xD4D0507E1111FFF6D30D7F7914D03Fe8F773326f",
    "userId": "310671443"
  }
}