Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '228acc7d84091c03cdeeb8264e9189029b134c57140472adfbdfc2796b4efff7' 
  AND token = 'T39oAYEHJNTwBP953mYJG/4Gz2JmttH4RvXo87JhO+Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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