{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161764",
    "entityType": "User",
    "nonce": "0xc933f04e999da87730f788b9b5ea64223a6f242bf28adaa8a53a589fc6ffab09",
    "signature": "0x86d47ef60516cdbefe23d7eb1b96d170490419bb9380c943f7e87e35222d1bd1383ad7930bba59cc15d1cf30e0e859df54719f1179c9509d02c20cc5c2e102f91b",
    "signer": "0xFe4E972E3ec8D8d619816F5644f74CB5bA1B01b1",
    "userId": "219239808"
  }
}