Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3581294a7fefab4bace03e2f60a39bd86f20a7145a75c05757d22791b65a6ea9' 
  AND token = 'tIW/ny2DQ2pB7V1RAt9CBkd6gYkrlBinAk/bGeBWfPs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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