Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1c165d11c6e69991c6d3fda3a8741133baf73281b64202a913562cf7f4804843' 
  AND token = 'DaXOAXTOytAcOjOZliRDZeUQwFfLgZ469hPZTQxoxzY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00075

JSON explain

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