{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x8a3d7000fc76e8d1c860cb68cfd5987dabe3b961f2ef52838e01a2efb0f753c0",
    "signature": "0x83bc5df32725c6c2801948b0de5abe96562ee483c3b4bb9ae12f18dfed475e4e60b15c3077746a1568563465e7ce054d2d915734a5cb2701aa2ea20109f85b351b",
    "signer": "0x0598FC797642238bFb08593189CB8B4b21aFF411",
    "userId": "179352401"
  }
}