Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3003612028deaf94b1868a21fc52d29b211d46f9dedbb86569a0e1f06259100c' 
  AND token = 'AaxiKsTpG5orrEbuT3PTBbr3lbgRHAMdjI4vgnOAsnA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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