Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e495148dce8e0ba8f6c70eab55db6f93904feb27e0af819efb991c6c15631766' 
  AND token = 'paa9x0r9vTF0STm5JxFwE7YHYMfpNCGUad7jOF9vYqc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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