Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22604a0098fba080c3559590a37ab4a02f873b3ae594eec341a41b8a8d3c85a4' 
  AND token = 'BGdgV3r2MP51beyss7dN38diLlv69vC8N26wEfjdklg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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