Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1c7cdf9ebfaae2601d93be02a66a2b0857e4c495aa09f716dbdc8be50b5b4992' 
  AND token = 'FoYygjTGKGhlY9GbxmMhkdrmhTS25rw5V/ADMF682C4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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