Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd499a07596c7c80a0d25a3872531ac10fb86983f633014099e4b35322038f7fd' 
  AND token = 'aQlrV4RRBWKNOjhEuYT4tMhy2WIEXn4fwtTfioQEyMg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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