{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "829862826",
    "entityType": "User",
    "nonce": "0x4e2a5d20b16e25e042b338265eec5126de38dd568bd10d2ad12c52b27f120130",
    "signature": "0x05be43ab8ea748ed912bdd16fa89ec87376b8fe67aa9c4c70621f8a2d480336e3adb10d78e70b1ddb1dbc20451f07cc4eb23a0cf77df16c2b4b66fe71712d9ac1c",
    "signer": "0x631c61D8ec19b8B89957c2Fb0C4E408DB925EA80",
    "userId": "719708196"
  }
}