Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '45a0b1babdea46e20eb107b21b4c322f247c08be8f566b18f6a149b89d16231d' 
  AND token = 'RwkwhfSNbCD5R35xN9KhieUJF92IUkfSZwnoI9URPIA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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