Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7f8a71535cabe3778f8a9aba124d719834d8160d934a4e523a1adad3cba5858d' 
  AND token = '/Mzgr0ITE+nqY9eENVLWCBu4glLfgfimp0/9Y9S6ATc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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