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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2ba7e2bc4ea72b752a508c3632bfb0fddf6a9b1366c25a15c7052ec75a0ee231' 
  AND token = 'ABrP7LuySI8W9CW74WA/q24oHb7nIxXJhcvtjcplMeo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00057

JSON explain

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