{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951644728",
    "entityType": "User",
    "nonce": "0xbb238a2ac5471914e601d5dfa83b307e8e030d3b81ac7dff4bd77338a6529844",
    "signature": "0xf6c6eb684e09f11a68f6dc8aa8d7d14dd2d90233de677afff0f93ec0ee1882fa5b6ff562cb185d8c3672078e91d4882aaf7926cfc6f6e268688f40691bc262771b",
    "signer": "0x3D472a01Cb831ac594835ac6038A4346E2A22B94",
    "userId": "327343"
  }
}