Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1df2db46d8af6deb5abe90c06bb6e1ac218b77556a04a083b6bc1d74877243fc' 
  AND token = 'Oa0kIIM1RPV2J1uV7ZSrIk4sLW2oESZRjoeUH0/MiIY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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