Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'da07ae8fbd06d6a40c0e2e35fb68c7a966bd6bad5f6f0aef6d902836d66fa133' 
  AND token = 'TpOXr0i8Su1MJKaUd4hKg+THVTJDW4eJ+yzsCdgJBfQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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