Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5325c160a4da9162283da139210887dc9e10fd45a7077eac7bddb62b703da2ae' 
  AND token = 'Vi1cGNURetfzfhvtnsRCPmaxmHp6eKT6BsSgNV+EHUU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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