Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13f2aad513b267de580033535fccde73caa42c585d295b5849e8c491a04e8c95' 
  AND token = 'wR6dAljKJv8p2tElgRfY7d6T0NaW6RsoNa1wyeWOY+k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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