Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f33744f6d64ff3f27b2110ba0e6cbd1e9336db860aba9af8932d5b186e0a34bd' 
  AND token = '3gCcuIovm+7LfqEVsrhp9Hm58y3vEACqz+65ijiIrxM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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