Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1a32be3203d487f2dae1bbca63270c8632dbe39c275692bc49bcebf8c1ec3105' 
  AND token = 'rwcOUUWdt7jLASSh8gpGuzhM6RUGSv6huVMTaNEssc4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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