SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07ab2c75b80eb9ed3e94c8a2799fa3ef55dfb9fa0abf64c7029f7164182cf25a' 
  AND token = 'bfyTb4jIG2xgHa0PDWSeLOn2WzU74sD1FvYJAF3vBCI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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