Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '6a057407fa045ee0c4272a37916f3f66ee2794c16844eae3f00c57a888165f79' 
  AND token = 'btptAmHXXTogWmyOc2Y32RCte7sJJQ5e/FzX31zZTFA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00062

JSON explain

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