Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4167ec19d3dee221eb36207c444f81d60f13804a8b0d717b682c421c77249419' 
  AND token = 'XM6TQIrWeGDKOHd02nHAJLc3f4qKAmcB3uYMpii57b0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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