{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "905219052",
    "entityType": "User",
    "nonce": "0x324503c8016817f24df2f7685c2fe92d5f5a58bcc75433c8a2b626d81bda3eaf",
    "signature": "0xcafea00b2cb502b0e4501adc78a5c934b5ae64dd989d2e7cae2937c630293ac02a7639ec2f0501ad0d48f6ec75df25072ac4576228594aca5e38352817bb22591c",
    "signer": "0x7D273271690538cF855E5b3002A0dD8c154bB060",
    "userId": "1"
  }
}