{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "248790047",
    "entityType": "User",
    "nonce": "0xf162d467642055037fbda4bf48476ccaa31c8f49aa41472b69ed2d19f7c347c8",
    "signature": "0xcc6dd9d93c9e1479809c35c25c39e7316e2e13a469b0b6fa5012dfddf579ec7e64a61da904acb3a015a30fbcd4bd45652f419d4ffc5888d7b11ab60dad2c4ade1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}