{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0xdcfe73530e64cdee920b0f4058dbd30d87f2eec5c8509360accbbb9bcbd9fc8a",
    "signature": "0xcd419ac8ca5b7dc2eb42348d13fc8b88f8deed8b5ed4dd6e04e7c7e26956ad51172916341bb4e3e46549069892bc0c9bb2d56d42ddae85f84e3c603dc012a9a01b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}