{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3829",
    "entityType": "User",
    "nonce": "0xcb8f362ac373e125f862b5d0c11f5ba36300d9531f05a215b349f459af783a48",
    "signature": "0x2aaaa9ac12064db3545cc4debdb0365d92404ba95b02c119b81b7ce09a081c6e6d4080f10959023535daea34f89f581f388fd118a9fe8ac660ae6f9f024baae51b",
    "signer": "0xE9B9EEdDb579478834256Bd35E42d09cfb754b1d",
    "userId": "281227"
  }
}