Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5bbacb9f8e89c0a8a9d6d42ab4f4433bccde4ff33a7f130034957a08514d55ee' 
  AND token = 'HXp2ytxyr8cVHfIRLDVviWMntsC9T90HOzVfvgJIlWo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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