{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x2345407458af44554600248c919e20998b9f1a49e75441cba03c92d9a9c78bbd",
    "signature": "0xd373aa8a80e338d74748c781f7835c920f70501d764e07cbcc9fd714964f6e7d2878d4afede63f81b3bc2e9b9d08e870d47df60aa631e0c72c33e118859d6dd71b",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}