Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '24758d11f1bec26a71ce110bd6e018f91961ff6307ad398e690f5a0dfe0377c4' 
  AND token = 'ufzeBNcr26l23kYxzxUVa06nkUJL6X/9eNMSqQhk5zE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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