Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fb6d707f9af7ffe79475c18a1ccb0912e78c14a073451c076644aa574b6685be' 
  AND token = 'B21EZvc2cbY5VqsFL9qbk91STPK9CMJ5FcuBm7dHS5Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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