Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2d005c9ec05f46f2e94d7b6825d22df7775bb50f2bf5b155330291f5e602465e' 
  AND token = 'YWttNepYNr+KNZnLB15t9GTDB1awMI0t9Iq567HWKtE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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