{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfe24654437b9e1d85afff9c5e751510b62254b44788226cac31d955d21d0c8b0",
    "signature": "0xd262122248201957cbaddc93f831f76cc66eb548f42e21cf2c2d675aec366d6e07dfa20ef5442f53b9e9db61801511c564b7ad4189f3ce047be7ac26298536811b",
    "signer": "0x6a1eCc7128689c85Fc7aCB2BEf73235E1C4d1B1c",
    "userId": "433876618"
  }
}