Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '27bc876ced48730925d5d9d19ab7ced97b7469ec30837988520504152de02317' 
  AND token = 'ujO+UJ8bbxfmjjBJDrOnH3JMhpHZ2V4v4xEr8jK/bSs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}