Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '88ea955279ab3b55741ddad9b064b3210dfe7e8b787ba7f3a288b728307414fc' 
  AND token = 'p2eWelwkbhw8gEaVl6dKfYVm+wbMWOC+s6wHajuWGhw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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