SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9be85faf0d8900aa105fff97d5ce07b1c380e95cc419372520414dc2b2ae7364' 
  AND token = '+gb5wK2/lyszlWAvqG/pfbBUMwRGyUO9Pmzolmnyn1w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00100

JSON explain

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