Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '025d709253f53af65de379fc555718352f988421966586b632725e5f3d5511bc' 
  AND token = 'osmUJh0DYP+zUYiCbMz759eGkPpK4o3QI0isJT8ljU8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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