{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xefd5f52b4ea4d241d8aa04476e900c90a2899a1e66155de7fd910020c7e7c3b3",
    "signature": "0xfac26589b73e6adc866e6270c62ab584414dd0c11abe5cf341828fefcbea98f8250b3e4d22cc885f2ccfdd6182946f44c0e7387fa35b86f45428802a2f442cc21c",
    "signer": "0x8e25D456625B4642865b48549F8d5171Cb0a1DA6",
    "userId": "965884988"
  }
}