Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '008a549fb784a6c7117891edb3962111e7fb5ea814be7ad7179a6b0aabc2e7fb' 
  AND token = 'trpAbmqqriUp0sYirVN8VUPzCXQpLSXrXaqGc/ugCbk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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