Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '19c57a97ea12e338056852e1e2074f60e521670476fd610cc14ec8f5cb760550' 
  AND token = 'Vw6ipj7/AA/OBFKa3CK29XlOQqHTblyTdy0wYMZ35Fo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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