Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0b98a90e47811ca610941be525bf2a3341b21370cde32cdab585d7d6ecc56550' 
  AND token = 'cFdczP5kkwaHxmYQV4yPN4Mf057kuQWgqv6T9rClGHE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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