{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451786021",
    "entityType": "User",
    "nonce": "0x483e8c18b5a2edfef18b238908bd86abd4a51d2f017887622d595a6e21477435",
    "signature": "0x40d424cde906e4ea5fc937873b350ec4ff12e8b91d33b3b2acdd4ae5edb2b16b454d0c3229ed76170b6d62270e5a70bea603879cd19747280efb7f0d8bfd41d81c",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}