Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72e047fa6cb532bc0a5ea39afb0c2b0eabcb6c0b4a550503283b122ee90a329b' 
  AND token = 'GLFsyKBEyeQ2VZIVax8duGmH/poz+XegchENfITwmgo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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