Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '202ba2397cd9471b78312859a760190d65c63416f2273e68dd3975674828c0f5' 
  AND token = 'cPu/S45Qxva2U9p/5FE7R+OwafNU4GuAYYYjBj8xePk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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