Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '05e2f052c807c278f23de13b9fd202a02027630ab7683d7578bc35812afd864a' 
  AND token = 'TiM9r1HSN36abpUDP0GUfZnFP0fNNluKkPuSqJs8E5g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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