Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a369411bd6e171be15bfe5a9f30ce4c10ade0680ca0daf78fd52bd875853ca7f' 
  AND token = 'VOOiI5R/XV3oN47lkdGNulTRLld7BL9aJMSor1/J+dw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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