Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '004f3a063d657e65d5c3fdf8f3e821e59642fc8872f835d056cd3e05b043b9bf' 
  AND token = 'OgcLfuHJqkzol8ENaxHwzM/b+6s1Avo2n6fGXH1G+H8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00047

JSON explain

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