Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f424ff8c45a4fe0c50edd2463e3478ca422719994ec4c80684988370a22a3c27' 
  AND token = '8YCsPwn0ScGm1bcLE+rzSoRv/bVIthZRnvW/yH5sXRM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}