Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '546aa6e76c2a50254485102ad3164a882fca82f4538eec5c1f168dec7de011bd' 
  AND token = 'hkwg1CN90gw1yJ4M0DP/zvFRQIVSuQcLZlZx6Ior9Ls=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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