{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1513",
    "entityType": "User",
    "nonce": "0x9ed2c208ad68d9e684ae540779650bee2e4fa01a2e0a6e8c665241bb47eba46d",
    "signature": "0xf7041825d24a0cf782099c2d8a2abf7d667f7612bb8a629e0f8a20c30ccb98ab4cab2e40863e1d518a442462803ac862a5d61d49db30fecbbe66ff5fffde6faf1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}