Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '25f3e84169cc69b79487f60e90752ed92fc77b619f7e5322c5d552a4cb227b6f' 
  AND token = 'y3bunR1CBpOMQxC4g9/Zc1XE+NpD/9EQc6uW3cAhTfA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}