Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '12bc0dc95cf0db38fc744a2036016bc0143331266a7004befc480d8467d58246' 
  AND token = 'TOJ/h4cD+0GJ3IO5rFjaK72chAmlUCCou3jSSdV6mks=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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