Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2a013bb06a9efc64d1b455f362baf82849d9ff37ef7193b41b936a107f99f9a1' 
  AND token = 'd83atjFKlN6TfWA4Txl42sYrovVhW0W1Z/wQ24DL3/c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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