Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '41811575fb45233eddbcd28182308d71b09ff39ebc507dec5749162b56fd4d0e' 
  AND token = 'qcbHiLjG8956ZsLGS0FTAoVnVDXCJ8HJ6eRpvcvqbCY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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