Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a175676620001712669ef947c514fcdacf8d2693b143922f8134fdd57fc8f8a4' 
  AND token = 'DpWfXUj5FNdapPxtMTjoVLwq0gk/Zdb62du4bgZK5R4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00052

JSON explain

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