Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd13e6bf305effafdfef54aa5edd79ad6fd18198ff608e32c1309fad4a31f0cef' 
  AND token = 'OJPMw9ojlg31TfYw2CjEcD2k5kUO770U73KTpEhJILU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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