Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fa2cd2f29af0910f6107e096ad5230457de61d444136bffb4fc3b39bb72a3ead' 
  AND token = 'EdIK37o0LRB+o1NpJ6xMv/OvUvWdyJo3a1XREMt66IE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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