Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c4c1dddcad4c58aa9fe1612b5966583a8942c94ec9b754ad8afabb767ae1bc63' 
  AND token = 'ccg922pOolS+UEoOpphN3G7Nygyt0LgEAnRZrhr0xuE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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