{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5716",
    "entityType": "User",
    "nonce": "0x672a790d4eac00c1b144cd2d56ed2333fa85f0a7cc1d741672ffc8a8f9dece36",
    "signature": "0x9ae22d522532d469a028542a19495bfe08b7c8b470ce02a4119948c78051532375fbeae05c5c9915ecb8241c7f43e9c22c170ae1889a4cdda9dbf1aca4ff742d1c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}