Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5f487a20ef1e3f6430c9a8fe385af47642b038775eafeeed58dd85eb39e65735' 
  AND token = 'cbKrRpYC6xGygTbf+yuhiNVGi0mGsBU9a5L8oIH/F40=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}