{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951644728",
    "entityType": "User",
    "nonce": "0x4c42288a18793c1d960ba8f1263b4bd1263bafa9c56ccb9bdc09743c0aaa1d0b",
    "signature": "0x6ff1d20aabab0a44c9b56300482a6255d356dcecdf228e4c086abef3e9f2255d7d93fdb7f573f4190234a203c55ddbca28d808fe584f8e398e2adef2b2cfd37f1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}