Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '44628af14b019312328841f0592a8b7c83c0e1b6e349b597ed60a41370925631' 
  AND token = 'HL2eWuoe4TQckgE6Xut6S6yhxlXqL02Kwli2KntWZJk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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