{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "542605740",
    "entityType": "User",
    "nonce": "0x214454d79ae473240448ae94240d9f34e7eea937787755c0cf87305a703bfdc5",
    "signature": "0xc2199d845d38f7621f392df968e5b68d76708e7dda217ea0500bca6cda06c2796fb35f56233466b467041ed83a5d62fcef9ba8f54169e95b959a78cebe60a9d11c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}