Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72835f8fbfd828237a36d0f9dd359f99b72fe545da48875f3a5b6e3b17acb56d' 
  AND token = 'qwiRBxKxDfN42GDUVmSeBVVXYFcps/otW83CewkyoxM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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