{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "417256310",
    "entityType": "User",
    "nonce": "0xb7c1c70ca2cd704eb7f4e1a9c2352d800640168f11ce191d90794103e66117cf",
    "signature": "0xd73c739b6be1a33b2ed7d76c4d3680763bcc466a41171110dd632a0d17993fe71e0069e03fc515daf4be458cb2918aaf40975d27df58a198a40d6de5b27bedd71b",
    "signer": "0xE020146C7aCDba5DC9524606CE182F8A3c1BAF36",
    "userId": "294330"
  }
}