Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9011b84b53880bb2ec0e4bb7dc8925c41c57d3130f1eac45864ee17117435548' 
  AND token = '/pNPmLICx3fd37FZFu+9fITFchNjpX6gnV6sSYaHt0w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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