Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3ac47748c6394c943532307f807a459dc9459fdc63b1783ed82349c30b416380' 
  AND token = 'AXDJPkgcKfCeEk4gOPlgC0s5zsGvgKhq9Ybr96iOUnI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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