Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '40008f85471462a9e6821d49015e2d0d6aabde59f564b1b8f8a30a46e8f1219d' 
  AND token = 'jnAHcnEruN0H31af0FxpUwtrB/wguvCBT56aeFe/lFo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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