Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '09d3cc2c3566c6c62210b66637b97bd64e18812d4746340eacd2484ac5e22767' 
  AND token = 'W8hRr/X8ZjX9j1l4xgjcayFyICXt0/910cg5jy3KtHQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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