{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "399028978",
    "entityType": "User",
    "nonce": "0xe3a6cb79de73f42a49a231cab07b8ab6e38900a14a1f10af1fd2f98bfd26870a",
    "signature": "0x40a84e10fbc9e6b34daba182b5984db1fdae7c0563a466823f9d99dda9dbd1e2137f1aa932db00bcf22218cc1a7e17e94db615185a3cdffbd8df360d3588db7a1c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}