Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3a10914a95f0e5b939ba2201ee7e2857b4ddab717fb8bf509c7d373384da9804' 
  AND token = 'kSvNw/xIQqCPf+9UrIJrtffMHPNToofpNsM3OJxAevY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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