Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13602ae548f8bc1eaffc8acfc55e3020b6c3980532b6c979d31b26648cb6f489' 
  AND token = 'SatfsohRkBQhGLwna+SFb1J60AIaSdmed9bivsVNSEc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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