Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0625af81acb3fc2e65053512cfac6b5ed0caa3da1cacbccd48573ee544d4409e' 
  AND token = '8sOoaHFDWsJEpcrv9X3nx1CbFFhf/5eyy0dm5v2KROU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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