{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x6ac45eec32fe4c04804851adb17e0682925cd150603b726b3938ed72412438c8",
    "signature": "0x940d167486c94baa6df79e5e1ccd0e545c9c3a7ce0386720ff5ed1f955421f1477ac9b83cb705890760cdebe0fe510d4a951842468e0bc83c75457eece13a3321b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}