{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2290",
    "entityType": "User",
    "nonce": "0x24962cda0dae8161849da905be889fc37801cd34e527c3e639bef26d7ac39f04",
    "signature": "0xffabfc5a48c23394d54f9a00e349ef7117e0c7cbfcf56e3103cd39ec1f6b8c1624fe48635996f17840d64033cbba540f3426cc47c11a984e2d3b07fade9af1ef1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}