Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0d1a5fc9307a11d592701fa6a5950908439a879c4566dc709550724373e6dff1' 
  AND token = 'KIfS1Uv7X1uWrz32KKta0i6aJGNuWQ/1vtQNLb5moWA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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