Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0093b79289321ff8cf4030c160ccf9e4809b666cb5e5699a6b6933152398ffed' 
  AND token = 'nSpjdEErOgsm8r6bs9u49Z5jKcvj9eURCAS0/HvJYj8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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