Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0acd4beaba5f613d5fa77f34f14077d8063db97571ad768b35fb13c8d3d63b8e' 
  AND token = '+qB/JJtHA+yZ6+/q29xCyinRDjG0ax6+CW05Sihi/nc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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