{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "713989536",
    "entityType": "User",
    "nonce": "0x2011732c00cdf66ff6a62be7f1ab4ee74414f40367117528931d0d1b9db35557",
    "signature": "0xce24739ff162f5da0280dca01820eb0d786175b40ffd37e805d9cf77bd936fee5e738aa2b100fe7087a361f179254444a1547a6d5c7b11dd5b330703db9fdda01c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}