Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9d40474dfc7c3b3745504056cc454381646205f08b192c94f8df34ed5a0f0731' 
  AND token = 'LrMbZvWeg9JfFNZafnS7/XwTlvd/fZ9ySjWdvQ80mZY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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