Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd8b88c6498cd17aca03e193a27e703905dfe44137ca35e11a57b321a41011b5b' 
  AND token = 'BrMOB7VeQt8AHSyzR32/uaIq0+0MkX83rpfmpu2S7Zc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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