Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c78acde1de99ae8dbecc5f3d6f4447e9099902c3928b170135fa532879195c56' 
  AND token = 'f5woLrFw/8zL2ZJ4bLcLDtbKuPwfeR18htDBgs5qRtA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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