{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf78390be0fadfe3683d7c536cb8b637970e842d182ae811e67485c3720796abe",
    "signature": "0x17d1a50f4e175707e9fea63d34766e33c9d0aa2a580ee1801cba4c03ddcbea6c564bb78744e25baeb0d5036e13822a80ed5ee9d122ad4e139b34ff7a971320361b",
    "signer": "0xcE1000874CF7A0a7b16c35A55F7D6f10C607A868",
    "userId": "442277469"
  }
}