{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322809",
    "entityType": "User",
    "nonce": "0x1e43936882c9e1ee3e9e04e6ad58bdb641cb2ca77099ae9d66c90b7956bdd651",
    "signature": "0x594d0cc3b259672a03c8c2bf77ee4f446a1749a5bdb3748488b17a396b0aac3d7741c25f84d971b1f8aa1d02d90c7e1d73bd06ab3e6be58ad16ba1ba43ac12361c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}