Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '27062200962be8b18d866859ed4c68ea4ad07e07b8c65919fbe2646d0d67f27f' 
  AND token = 'ypGBo+fYgUew+m/85cuK6RzS8++4i+K5HOz3XXgEFmk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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