Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fee3e2837d56bb22884e4628f6940accb8900019115fd311c4590d0f0a23275f' 
  AND token = 'WbrU7mNFaGo9Cu9ON/rETl5fYqC0KOiLoiO30nBZL28=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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