Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7cc009b0900442a46769211786c3f6c5ed9b963cc43bc094a286caaf47633a37' 
  AND token = 'Tr38NJI1zO6ClgzNRE6xgF8WnwoFN8qPrlJ79rBkzvg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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