{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7504",
    "entityType": "User",
    "nonce": "0x255b71a936787ab69c2d66cd7b8b3875bcf70056a14d720f1bb81b4ea09bf244",
    "signature": "0x5ee2e6afd70d9e1242ba2047e284f133915f479b2096df98c96a8888209da589580ae3f85f922e2c85b09f9233480877b804503216ffc16c5b87f42d6b5a992f1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}