Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '505570dd9252ce4b576412cedf64163e09b9a1ec82deb649316e72dbabdaa263' 
  AND token = 'vo+n/E3ichve66B222FICA33CVunWax9GmsLLMVEx/c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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