{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x88f69741b662ec14398eeee333ac8ce3418a6c9fd177e98c3d0aea6f93637ec9",
    "signature": "0x279ead864e18dc88adfc970508deebd03eceb6a2ce3cb1f7ab735f2b4ceb7e342afab121fdfb49a6e208d3a51c485e3581d4d8bf8fe859ede2c9b6ab1ee410081c",
    "signer": "0x974eA4a70C4984B02Bc389BAfEa12383bCBb2c0f",
    "userId": "251441680"
  }
}