Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4b9426e7407498e9480ef02908adf9c51069b409cd12d12ab59e5e2de45a5c1f' 
  AND token = 'd8LUxqoitqSe7ip9vuJJD+7IV+AN+l+6eniAi5id91g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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