Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '39bd6ad486ff4874943b0d90734ad3d331747a34f20688c5990b09a613d642a5' 
  AND token = 'J3pVatidrbX0prNshGejcOhO+TcnOdLCAq7nvnHI4o4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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