{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52309",
    "entityType": "User",
    "nonce": "0x427f148f04f8aa9432eb4e23f78c7fbc18c3a1cbb1a99bccaac59b1f21ba6751",
    "signature": "0xb7ede178133096bd07d19e49669c4221a4feddf77a0f171882bc14db90c9690755b8b1070bdb189fa6e17e1ab621b53d3f0b6638f13709d8038e3b3abb47b50e1b",
    "signer": "0x997f52c4af8280b4e3F3F5A559DC3565DC8C8fB5",
    "userId": "337364291"
  }
}