Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c53efd5e20bb8316700941b8d0e5ec05f7608bd56dc1c3dd668d4313e8c83a0d' 
  AND token = '1lXPAYLJcMrTK6vhszDn33bbJyUo5tAX+O0UD7x+PyY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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