Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '91884de128dcc4d02d35ef893127a588e01f80a2a8d5ba75aba7c4767f3af58b' 
  AND token = 'JsyTGEHjJbEMF63xyZbBayRtjq1KAiZeIrf4Tcd3uyg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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