Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0410ee803166941272a0702b7eb301c32ac7551f124f730730933c2a354b74f2' 
  AND token = 'iYrW1Cj4QDYW9DO2fNurjb2IafQxM/c9iWmD1vfOCM4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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