Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ac4ef66b79299ed48c532d52b8a7b5e2303975b1b182e7ccbaf3da385f4a074a' 
  AND token = '7k1t40804jpbmsTo+hoa7wZ/bSlDO59li6Oyzf9Is64=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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