{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x10eb15e5e282eebe4b23185740a650a6db3119d3940cf3ff5d6e9091fb4165da",
    "signature": "0xce0defc2d3c01f7aaeeaec2d3ece43acc2d54e5c9ded5e458fbb04a6fa615bef65377f413d9a2f7b02c46c43d1949639afe33036dc1e3c75d4cb11417d0066d31b",
    "signer": "0xFE26Ced17D84653bCd93A08D335ed2046810d424",
    "userId": "671918813"
  }
}