Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '254fa5226f3044b171eeb67d87474bf2c792a8b8abf8cc1a6b034cc2041878f4' 
  AND token = 'VN866vio+DymPDf1/PKDKJ0tlniZwwh87ii4fcPaGBY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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