Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '135cb84a5bdb954ccbacb4ccbf8a3d0fe4cab9f7fff1ae859b68b899e1688c30' 
  AND token = 'Sr97A3cUEmYl3FYeGcP35IxzLOl+Lo4qMhSgZEH0EFI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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