Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '106ede99b53e928e637371beb4496c3ab524aae7338b3a664f46a2c358b8d5d1' 
  AND token = 'LAn/9AoIoAlgWmbI4q6GWVGjlxLcDPJ5lioYTI4JCGY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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