Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '265fda216f8fa1ee168ba93156be774859614cc2896da0f19b6a6332f22bbe77' 
  AND token = 'KzTWfG6Uaj4sB9mFsS4TlGvoez2qK/991LxWK36lH+8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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