Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a132d1ebbf07e637e2383ee0c44f49a0e6eeb8b34133f470201a51cf92ac2230' 
  AND token = '93vBVTIzQZJ0wjvuLXsNgch6IRAetN+T7Omlf/Zr1t4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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