Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '03f7a3cd8977c96e2d886c451389b6a69153635b158f9bac21955e990a527884' 
  AND token = 'Wp0S1PjjpPZqej3eZ90LzXOWZ7Fw0EA6qVTex3cpH24=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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