Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '367280a8bc88f872fceffc0b7a9d734bf4c3dfe3b48fba57f69dfb1163297178' 
  AND token = 'mzdHLX1mttgvctre0T7L4FDkUKdOb5Y77tOzTWxLTHI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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