Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7eced0b23b4310e663f0d12f597f79f243d0f9e3485ec162aa3e086429090fae' 
  AND token = 'iNVDBnDdxJuQfa5nAwZpnE3bU0D7l+R5Pl40Od4zciE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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