Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2f683e6f169e9f76092d906224c62f775925ca9f3ee95f05867125b1a15e8846' 
  AND token = 'Qngl8UV9aQyw0IKzcDobfbI5S7wZcbQ/ghb4qgcA5oU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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