Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fa0157146df617b92df56eac0c6d5aaf09a7a49fc07c6eae4d87300421800f0c' 
  AND token = 'TfSwZACDn3zZF7aoT6idXW4QzDmxGCaFC8KgItjDWwg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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