Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0a44e5058dc67110268f0638b7513b06676291c59baf2b10889c9b242e9d7c2d' 
  AND token = 'gMyJpRMKqiWHWlQLRe5rLP07eXL6SLnfhacE03Q+dnM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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