{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6d61cacad5ead5f7c43cc3aef08f927d153c2b4ee5652065ce74c250e8488fca",
    "signature": "0x89c36f4f7fa064641fa0645d0fab4ce80bc1bf260ccbe6992e0156b4bd70ca0e55929f0532f784ebadf8e69d68d7e23a6169bf50a43225288b39dbcb268d0a851b",
    "signer": "0x89fee20b326EE829A0A4ed25317B9B3A735387A1",
    "userId": "143995385"
  }
}