Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7596f04f1b13b24806d653380b33a225810c40d4f46b8f8407a68352e9032d93' 
  AND token = 'J6ps6YXIcL0MH3sRENoh4y0zocg20C0n1aa/0PN7yYs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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