{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354073",
    "entityType": "User",
    "nonce": "0xed216b6008e9c87dcf85309ec91f3b914f4cbd3145bf40908323345cc53a636b",
    "signature": "0x62aa97b83c68601088fbec18f41bb87b362328bd3e16f6b3de30b6a1f73263370890e7cd440d98047eb4210e577e9123fdd891c5333fb37162e422007f24d7ab1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}