Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b70375b07996221f01659f71b3164eb6920dd6812d210c73a2e6bd59aa17177d' 
  AND token = 'h6Bd5se4QaUFpCAomDAzSzU2tq8OVC74Gyi6bcODI58=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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