Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '02d5f075c2352c00dc193ad7392d0f673f3a1c3e58bf33190e89d431071c2263' 
  AND token = 'ahBOKSC4E1pBgZUllk1sghB8Vbb1gKwZMETEs3bPl/k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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