Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ef009e2116845fe555add853aa44a1a782c448f1a441d3273c1a645821cabc3f' 
  AND token = 'z39V+w6uSJUNk5gUX8Vumx/Y3KCxzrkbUALSkXQMGOI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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