Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7130ab2f58ec9aa8c8484aa6a8a57f0d34ede256a2c8502b1900b2a701edc90b' 
  AND token = 'Vthjel8GIlH2tzAmV3gT5GdMSmk4JrzN6Vt1Z9osguI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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