Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a3139ac7f3bfb0e632cf6a51250a63a3d8ce8c797a672c2a0eaf1b74051bf994' 
  AND token = 'hR4Q0kj7hjPo3W2TlgaLhWknWkCq0nkK3xSeuA0AnCY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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