{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134619804",
    "entityType": "User",
    "nonce": "0xc5e70c5cf0033a614de4636e23008575ec07626fb1d559b3d29e117348ebdf7c",
    "signature": "0xba4cb543fec335dbfaa3727719d018d82e540cd035f984363f09e34d8cd0ff8b407b4486fe414b0346c71079f58d03f13c543c6ab32601468aebeb64431424861b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}