{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xeb83580402727d4383dc84a5b5bcef594ddced139631f34ec70aa498c264beba",
    "signature": "0x02759b34d7c023c484d7c941c8eb54354110b142bee40b71ab64f7ddb372a58020f09e0de6e7122ec9aa53ef888255efedcc75b81a7598a7d26e92e5c020ac901c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}