SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2b572afdcb9c1b7be369d206c455a85aeb8cf5cb2f4d8819a16a07e7cf653ebb' 
  AND token = '5+J0zykqKNlILAGqstDFX8MdBW4ztRar+Suovi/2h6o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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