{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "704470285",
    "entityType": "User",
    "nonce": "0x02e45fe636375961aff7dbcc33ec0addab023d40c67bdbdd82e86733b24d0bdd",
    "signature": "0xb9e9b65fd1c748fdf31a705dc3ef96a06009c660de64d1bd04205600f317c31b55d512a9f8fe335911289fd5f56ba90249ad7b822d0ab4b92e199bf33fb8986a1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}