Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ae34c360848ae8bd4450a84a033d69aa1eabbed342eea1eb26db6a556dbf6003' 
  AND token = 'fVPFJuruyD6SJtn3/XlilKCEhcxtV/IPYPBpxlpr4bU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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