Sandbox

SELECT 
  1 
FROM 
  cscart_multi_declock_keys 
WHERE 
  key_id = 'e4fa9a3a2856a4ad5c640db8c2a3255814c1a51d48288c451c5d85c90db0ac03' 
  AND token = '/he4eUcWHglvpZ0FqJcsz1lF0WCJuVlUfDi/nw6faqs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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