Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '91de6d7664c68b3bd06f65a7beca077fbe973aa125cae42442b9037e0b991173' 
  AND token = 'sXA2XkuB+bhyLqgcU8Wg+K0TPoQcM0iumeBmR6PWWCg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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