Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '004f05c279c244ccdd33be88b16896ce639617c4ca4d25db5f72ac7fbe78b8b3' 
  AND token = 'bng3ny4b+D4Y+akxdtWWA/1FM6DKvlbD+HbcQiH3AIs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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