Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1e23b9cc8c41551a556a8b7ec760a967f100d72b02223045e473c5cc2e91c91e' 
  AND token = 'zu3MPgAUM2J+QaXt/TFywkbwWFavW1/EKP0RO6sAFRs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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