Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8910221ee0a9dda89571c0f7f126c226cd85fd122d9b6aad22fe4991cc3a39e8' 
  AND token = 'wBSJihc7YnYLXWzL+8sZd3Sn/GdsU9FKbM22C9dlPJE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00131

JSON explain

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