{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "582042783",
    "entityType": "User",
    "nonce": "0x564506e316f62ea1913d00088423e45f0b2e471bfa6792284ec5419672321a74",
    "signature": "0x89283ba1e98cf64bf8f285195606aa4c165eb35b39e1d2ef223ee6a4fc89bf007364e3af0f4f3d4173753eb8241b3da3ef4687223e7a450fe1d1a5afbfaa749e1b",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}