Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ebd5d4206f47da52634bdc91d2f00eb64fa6c1a2cbab233169aedd929b9943da' 
  AND token = '8MayzV0ZAcXJks6zDciKEgwDQZGUSi151AcFyFug9Bw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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