Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9e96360532de41dd677293b9a0c232aaa56b24a4d4dba3fcda6045576b7ecd57' 
  AND token = 'XtWwCA9JtCPc5o4wtT+yaSozCwED0LfAbLgO0BCmq6I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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