Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd2ebc68edc570d05a7fd92980092c331a025f2bf62d223eeab694069050fea8d' 
  AND token = 'vcPw1bFGDqERFG+DKm/9A1rsTSi9Nv69lh9fU9bHxPU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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