Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '80ecfc5606c3c07bd48a08aa4d0a12a95f6a8e7e839384aa4be561b26a3f1496' 
  AND token = 'yQeNxQtxv5NarQDFIj0jBeFv/zTu2ntrx94/TyHgFfw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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